"Wait - are you really allowed to take video at the polls??"
Most states do allow you to film at your polling place. However, some states expressly prohibit videotaping and others have strict rules about how close you can tape near a polling place. For information on your area, visit http://www.citmedialaw.org/legal-guide/documenting-your-vote
In any location, basic rules of decency apply (don't film others without consent, and don't campaign for any particular candidate), but documenting your experience at the polling place in most places is as much a right as voting itself.
Thank you to everyone who participated in Video Your Vote!
For a complete look at voter documentation laws, watch this primer from the Citizen Media Law Project at Harvard: http://www.youtube.com/watch?v=DKhTNNXJIJQ