Double check your polling place, look in your local newspaper or click here
And courtesy of the Democratic National Committee:
VOTER BILL OF RIGHTS Know Your Rights | Exercise Your Right to Vote
Voting is the most direct way for you to affect your government - don't let anyone deprive you of this precious right! Read through the list below and be aware of your rights before you go to the polls, and use the information below if you encounter any harassment or intimidation.
:: You are entitled to vote without being harassed or intimidated by anyone.
:: Bring personal identification with you to the polls (driver's license, government ID, bank statement or utility bill).
:: If you forget your ID, you can still vote. In some states, all you need to do is sign an affidavit. In others, you can vote by provisional ballot.
:: If records show you have moved, you can vote by signing an address confirmation.
:: If you are in line at the polling place before the polls close, you can vote.
:: You have the right to receive a demonstration of voting equipment before voting.
:: If you are disabled or are over the age of 65, you have the right to an accessible polling place and help in voting.
:: If anyone challenges your right to vote :
Ask for the name of the person who is denying you the right to vote and write it down.
Ask to talk to a supervisor and lodge a complaint.