diff --git a/src/commands.rs b/src/commands.rs
index 92a34b4..4f55bd8 100644
--- a/src/commands.rs
+++ b/src/commands.rs
@@ -33,13 +33,13 @@ pub fn run(command: Command, flags: &oof::Flags) -> crate::Result<()> {
             let formats = extension::extensions_from_path(&output_path);
 
             if formats.is_empty() {
-                let reason = FinalError::with_title(format!("Cannot compress to '{}'.", to_utf(&output_path)))
+                let reason = FinalError::with_title(f!("Cannot compress to '{}'.", to_utf(&output_path)))
                     .detail("You shall supply the compression format via the extension.")
                     .hint("Try adding something like .tar.gz or .zip to the output file.")
                     .hint("")
                     .hint("Examples:")
-                    .hint(format!("  ouch compress ... {}.tar.gz", to_utf(&output_path)))
-                    .hint(format!("  ouch compress ... {}.zip", to_utf(&output_path)));
+                    .hint(f!("  ouch compress ... {}.tar.gz", to_utf(&output_path)))
+                    .hint(f!("  ouch compress ... {}.zip", to_utf(&output_path)));
 
                 return Err(Error::with_reason(reason));
             }
@@ -61,23 +61,23 @@ pub fn run(command: Command, flags: &oof::Flags) -> crate::Result<()> {
                 let mut suggested_output_path = output_path.clone();
                 suggested_output_path.replace_range(empty_range, ".tar");
 
-                let reason = FinalError::with_title(format!("Cannot compress to '{}'.", to_utf(&output_path)))
+                let reason = FinalError::with_title(f!("Cannot compress to '{}'.", to_utf(&output_path)))
                     .detail("You are trying to compress multiple files.")
-                    .detail(format!("The compression format '{}' cannot receive multiple files.", &formats[0]))
+                    .detail(f!("The compression format '{}' cannot receive multiple files.", &formats[0]))
                     .detail("The only supported formats that archive files into an archive are .tar and .zip.")
-                    .hint(format!("Try inserting '.tar' or '.zip' before '{}'.", &formats[0]))
-                    .hint(format!("From: {}", output_path))
-                    .hint(format!(" To : {}", suggested_output_path));
+                    .hint(f!("Try inserting '.tar' or '.zip' before '{}'.", &formats[0]))
+                    .hint(f!("From: {}", output_path))
+                    .hint(f!(" To : {}", suggested_output_path));
 
                 return Err(Error::with_reason(reason));
             }
 
             if let Some(format) = formats.iter().skip(1).position(|format| matches!(format, Tar | Zip)) {
-                let reason = FinalError::with_title(format!("Cannot compress to '{}'.", to_utf(&output_path)))
-                    .detail(format!("Found the format '{}' in an incorrect position.", format))
-                    .detail(format!("{} can only be used at the start of the file extension.", format))
-                    .hint(format!("If you wish to compress multiple files, start the extension with {}.", format))
-                    .hint(format!("Otherwise, remove {} from '{}'.", format, to_utf(&output_path)));
+                let reason = FinalError::with_title(f!("Cannot compress to '{}'.", to_utf(&output_path)))
+                    .detail(f!("Found the format '{}' in an incorrect position.", format))
+                    .detail(f!("{} can only be used at the start of the file extension.", format))
+                    .hint(f!("If you wish to compress multiple files, start the extension with {}.", format))
+                    .hint(f!("Otherwise, remove {} from '{}'.", format, to_utf(&output_path)));
 
                 return Err(Error::with_reason(reason));
             }
@@ -88,12 +88,11 @@ pub fn run(command: Command, flags: &oof::Flags) -> crate::Result<()> {
             }
 
             let output_file = fs::File::create(&output_path).map_err(|err| {
-                FinalError::with_title(format!("Cannot compress to '{}'.", to_utf(&output_path)))
-                    .detail(format!("Could not open file '{}' for writing.", to_utf(&output_path)))
-                    .detail(format!("Error: {}.", err))
+                FinalError::with_title(f!("Cannot compress to '{}'.", to_utf(&output_path)))
+                    .detail(f!("Could not open file '{}' for writing.", to_utf(&output_path)))
+                    .detail(f!("Error: {}.", err))
             })?;
 
-            // let output_file = fs::File::create(&output_path)?;
             let compress_result = compress_files(files, formats, output_file, flags);
 
             // If any error occurred, delete incomplete file
diff --git a/src/error.rs b/src/error.rs
index 82f8424..463e498 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -43,7 +43,7 @@ pub struct FinalError {
 }
 
 impl Display for FinalError {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         // Title
         writeln!(f, "{}[ERROR]{} {}", red(), reset(), self.title)?;
 
@@ -79,73 +79,69 @@ impl FinalError {
         self.hints.push(hint.to_string());
         self
     }
+
+    // // In case we want to use mutable references in the future
+    // pub fn detail_ref(&mut self, detail: impl ToString) -> Self;
+    // pub fn hint_ref(&mut self, detail: impl ToString) -> Self;
 }
 
 impl fmt::Display for Error {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         let err = match self {
             Error::MissingExtensionError(filename) => {
-                let error = FinalError::with_title(format!("Cannot compress to {:?}", filename))
+                FinalError::with_title(f!("Cannot compress to {:?}", filename))
                     .detail("Ouch could not detect the compression format")
                     .hint("Use a supported format extension, like '.zip' or '.tar.gz'")
-                    .hint("Check https://github.com/vrmiguel/ouch for a full list of supported formats");
-
-                error
+                    .hint("Check https://github.com/vrmiguel/ouch for a full list of supported formats")
             }
             Error::WalkdirError { reason } => FinalError::with_title(reason),
             Error::FileNotFound(file) => {
                 let error = if file == Path::new("") {
                     FinalError::with_title("file not found!")
                 } else {
-                    FinalError::with_title(format!("file {:?} not found!", file))
+                    FinalError::with_title(f!("file {:?} not found!", file))
                 };
 
                 error
             }
             Error::CompressingRootFolder => {
-                let error = FinalError::with_title("It seems you're trying to compress the root folder.")
+                FinalError::with_title("It seems you're trying to compress the root folder.")
                     .detail("This is unadvisable since ouch does compressions in-memory.")
-                    .hint("Use a more appropriate tool for this, such as rsync.");
-
-                error
+                    .hint("Use a more appropriate tool for this, such as rsync.")
             }
             Error::MissingArgumentsForCompression => {
-                let error = FinalError::with_title("Could not compress")
+                FinalError::with_title("Could not compress")
                     .detail("The compress command requires at least 2 arguments")
                     .hint("You must provide:")
                     .hint("  - At least one input argument.")
                     .hint("  - The output argument.")
                     .hint("")
-                    .hint("Example: `ouch compress image.png img.zip`");
-
-                error
+                    .hint("Example: `ouch compress image.png img.zip`")
             }
             Error::MissingArgumentsForDecompression => {
-                let error = FinalError::with_title("Could not decompress")
+                FinalError::with_title("Could not decompress")
                     .detail("The compress command requires at least one argument")
                     .hint("You must provide:")
                     .hint("  - At least one input argument.")
                     .hint("")
-                    .hint("Example: `ouch decompress imgs.tar.gz`");
-
-                error
+                    .hint("Example: `ouch decompress imgs.tar.gz`")
             }
             Error::InternalError => {
-                let error = FinalError::with_title("InternalError :(")
+                FinalError::with_title("InternalError :(")
                     .detail("This should not have happened")
                     .detail("It's probably our fault")
                     .detail("Please help us improve by reporting the issue at:")
-                    .detail(format!("    {}https://github.com/vrmiguel/ouch/issues ", cyan()));
-
-                error
+                    .detail(f!("    {}https://github.com/vrmiguel/ouch/issues ", cyan()))
             }
             Error::OofError(err) => FinalError::with_title(err),
             Error::IoError { reason } => FinalError::with_title(reason),
-            Error::CompressionTypo => FinalError::with_title("Possible typo detected").hint(format!(
-                "Did you mean '{}ouch compress{}'?",
-                magenta(),
-                reset()
-            )),
+            Error::CompressionTypo => {
+                FinalError::with_title("Possible typo detected").hint(f!(
+                    "Did you mean '{}ouch compress{}'?",
+                    magenta(),
+                    reset()
+                ))
+            }
             _err => {
                 todo!();
             }
diff --git a/src/lib.rs b/src/lib.rs
index b6fd3b7..eb7fa92 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -4,6 +4,9 @@
 //! 1. It's required by `main.rs`, or
 //! 2. It's required by some integration tests at tests/ folder.
 
+#[macro_use]
+mod macros;
+
 // Public modules
 pub mod cli;
 pub mod commands;
@@ -14,7 +17,6 @@ pub mod archive;
 mod dialogs;
 mod error;
 mod extension;
-mod macros;
 mod utils;
 
 pub use error::{Error, Result};
diff --git a/src/macros.rs b/src/macros.rs
index bed8ba9..cd439ba 100644
--- a/src/macros.rs
+++ b/src/macros.rs
@@ -1,5 +1,13 @@
 use crate::NO_COLOR_IS_SET;
 
+// f!() is an alias to f!()
+#[macro_export]
+macro_rules! f {
+    { $($tokens:tt)* } => {
+        format!( $($tokens)* )
+    };
+}
+
 #[macro_export]
 macro_rules! info {
     ($writer:expr, $($arg:tt)*) => {
diff --git a/src/oof/error.rs b/src/oof/error.rs
index 6dd4783..299601a 100644
--- a/src/oof/error.rs
+++ b/src/oof/error.rs
@@ -31,18 +31,22 @@ impl fmt::Display for OofError {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         // TODO: implement proper debug messages
         match self {
-            OofError::FlagValueConflict { flag, previous_value, new_value } => write!(
-                f,
-                "CLI flag value conflicted for flag '--{}', previous: {:?}, new: {:?}.",
-                flag.long, previous_value, new_value
-            ),
+            OofError::FlagValueConflict { flag, previous_value, new_value } => {
+                write!(
+                    f,
+                    "CLI flag value conflicted for flag '--{}', previous: {:?}, new: {:?}.",
+                    flag.long, previous_value, new_value
+                )
+            }
             OofError::InvalidUnicode(flag) => write!(f, "{:?} is not valid Unicode.", flag),
             OofError::UnknownShortFlag(ch) => write!(f, "Unknown argument '-{}'", ch),
-            OofError::MisplacedShortArgFlagError(ch) => write!(
-                f,
-                "Invalid placement of `-{}`.\nOnly the last letter in a sequence of short flags can take values.",
-                ch
-            ),
+            OofError::MisplacedShortArgFlagError(ch) => {
+                write!(
+                    f,
+                    "Invalid placement of `-{}`.\nOnly the last letter in a sequence of short flags can take values.",
+                    ch
+                )
+            }
             OofError::MissingValueToFlag(flag) => write!(f, "Flag {} takes value but none was supplied.", flag),
             OofError::DuplicatedFlag(flag) => write!(f, "Duplicated usage of {}.", flag),
             OofError::UnknownLongFlag(flag) => write!(f, "Unknown argument '--{}'", flag),
diff --git a/src/oof/flags.rs b/src/oof/flags.rs
index 231ec5c..89f3694 100644
--- a/src/oof/flags.rs
+++ b/src/oof/flags.rs
@@ -26,7 +26,7 @@ pub struct Flag {
 }
 
 impl std::fmt::Display for Flag {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
         match self.short {
             Some(short_flag) => write!(f, "-{}/--{}", short_flag, self.long),
             None => write!(f, "--{}", self.long),
diff --git a/src/utils.rs b/src/utils.rs
index a56220d..9e8d69b 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -47,7 +47,7 @@ pub fn user_wants_to_overwrite(path: &Path, flags: &oof::Flags) -> crate::Result
 }
 
 pub fn to_utf(os_str: impl AsRef<OsStr>) -> String {
-    let text = format!("{:?}", os_str.as_ref());
+    let text = f!("{:?}", os_str.as_ref());
     text.trim_matches('"').to_string()
 }
 
@@ -114,7 +114,7 @@ impl Bytes {
 }
 
 impl std::fmt::Display for Bytes {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
         let num = self.bytes;
         debug_assert!(num >= 0.0);
         if num < 1_f64 {
@@ -135,7 +135,7 @@ mod tests {
     #[test]
     fn test_pretty_bytes_formatting() {
         fn format_bytes(bytes: u64) -> String {
-            format!("{}", Bytes::new(bytes))
+            f!("{}", Bytes::new(bytes))
         }
         let b = 1;
         let kb = b * 1000;