Utkarsh Kukreti

This plugin enables embedding of multiple stylesheets and javascript files on a per-post basis.
Multiple file names should be separated by a ‘,’. Extra whitespace after and before a ‘,’ are automatically ignored.
Relative paths to files are automatically prefixed by the /css or /js. These settings can be customized by editing values of the variables $css_folder and $js_folder in the plugin file.
Absolute paths are directly hotlinked.

Include Custom Files

Enables embedding of multiple stylesheets and javascript files on a per-post basis.

sakaitaka

Compress HTML Code, And Converting Inline Script and Style To JavaScript and CSS Compressed File.

WP Fast Minify

This is a simple plugin that cleans up the code. I myself use it on various sites.

The simple plugin that cleans up the code

Compress HTML Code, And Converting Inline Script and Style To JavaScript and CSS Compressed File.

Include Custom Files vs WP Fast Minify