Voter Registration in most states needs to be completed and mailed in about a week if you want to get it in in time to be eligible to vote in the Presidential election.
If you have not registered yet, you can register by going to Rock The Vote. They have registration forms from all 50 states available, and you can print it out and mail it in. They will even send you reminders up until the last minute.
With that in mind, I've also made a collection of voting-themed LJ icons. The one attached to this post is from this set. One is a pro-Obama icon, the rest are non-partisan. Please comment and credit if you use any.