Twitter Garbage Removal
I recently stopped using Brizzly and went back to the Twitter webpage after I realized that Brizzly just wasn't getting it done for me. When I started using the Twitter webpage again, I realized that the sidebar had become polluted with annoying crap in my absence, so I decided to write a little userscript to fix it up. This works in Chrome and Firefox, but doesn't hide the ad in firefox yet.
EDIT: It now hides the promotions in firefox, after a little refactoring




