Drop "Uncategorized" When Another Category Is Chosen
Removes the default category from a post as soon as it has another category, so posts do not end up filed under both.
Snippet Library
Admin snippets for WordPress
Snippets that tidy up and tailor the WordPress admin: hide menu items, add columns to post lists, change the footer text and remove clutter. Made for agencies and site owners who hand a dashboard over to clients or editors.
Remove Columns From the Posts and Pages Lists
Drops columns you never look at, like Comments or Tags, from the admin lists for a cleaner overview.
Remove Items From the Admin Bar
Removes admin bar entries you never use, such as Comments, "+ New", Customize or Search.