On your customize bottom located on the far right of your Avatar next to search. Click it and a box will drop down to customize the site to give it your feel like changing the background etc. One I like the most is the sticky sidebar. The function keeps the lift column stick so when you slid down still stays the same no one side is longer than the other all even up and you can also change the column to the left side as well. (Will work best when the ads are gone in just a little over two weeks.)