I’ve been tagging my posts for a while now. I really like tagging because it is more flexible and you can see my tags in the tag cloud, but recently I decided to do a little housekeeping using WP categories.

Here is all about categories and how to use them https://en.support.wordpress.com/posts/categories/

So, I went through all my posts and gave them categories to make it easy to find them. Here is a screen shot of how to add a category, it just on the right hand side of my post composer.