You know what the worst feeling in the world is? Okay, fine, it's that moment when the person you really like says they don't like you back anymore. That's the worst. But the second worst is definitely that moment when you are about to vote and you realize you didn't register—because you moved or because you just forgot. It's especially terrible because it feels really amazing when you vote. So make sure you're registered at rockthevote.com, and make sure your friends are too.