Don't forget -- your state may have additional ID requirements when you go to the polls.
Idaho will have new ID requirements beginning July 1, 2010. (These will not be in effect for the primary.) You must present ONE of the following forms of photo ID. If you aren't able to present one of these forms of ID, you may sign an affidavit and then vote a regular ballot (not provisional).
In Idaho, you don't have to wait until Election Day to vote. You can skip Election Day lines and vote early at a time that's convenient for you.