Automatically Link Featured Images to Posts
Wrap featured images in your theme in links to posts.
Add default ALT to avatar/Gravatar Images
Add the user's name as a default alt tag to the Gravatar images loaded on...
Remove Query Strings From Static Files
Use this snippet to remove query string from CSS & JS files and improve performance...
Link Featured Image to Post
Snippet for automatically link image to post
Set Wordpress Gallery Link to Image Default
Override wordpress default linking to attachment page