DjZoNe

Have you ever thought about, that putting a post in a category is so plain, and you need more sophisticated settings. Let’s say one post is more relevant to a category, than another one, so you want the more relevant posts to show up first, then the less relevant ones.
Now, it can be done easily, with Category Relevance plugin
<a href="https://downloads.wordpress.org/plugin/category-relevance.1.0.zip" rel="nofollow ugc">Download now!</a>
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Category Relevance

With this plugin, you can set a relevance value of a post against a category.

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.

Category Relevance vs Ultimate Category Excluder