I was working on a catagory problem for a client today. I had to place the catagories in the top header, like how the pages appear on this site. It took me some time because the client wanted catagories in the top navigation and in the sidebar so required me to alter their CSS a little as the styling was different.

They also wanted it to only show the top 5 catagories.  I read the WP documentation and couldn’t find anything. A simple Google search solved my problem, and I found this article: How to show 5 top categories in Wordpress. It was such a simple solution, I was so silly not to think of it.