DanCoulter

Forgot the Category stops you from forgetting to set a category for a post. It simply pops up a Javascript alert box if 
you haven’t selected any categories when you save a post. That’s all there is to it.

Forgot the Category

Hate forgetting to select a category when you write a new post? I know I do.  This plugin won't let you.

Marios Alexandrou

Ultimate Category Excluder, abbreviated as UCE, is a WordPress plugin that allows you to quickly and easily exclude categories from your front page, archives, feeds, and searches. Just select which categories you want to be excluded, and UCE does all the work for you!

Ultimate Category Excluder

Ultimate Category Excluder allows you to quickly and easily exclude categories from your front page, archives, feeds, and search results.

Forgot the Category vs Ultimate Category Excluder