Missouri law requires you to vote at the correct polling place. That's determined by where you live -- and if you've moved since the last time you voted, you could be in the wrong polling place, and that could lead to delays on Nov. 4.

"If you have moved from the address listed on your voter identification card, print your new address in the space provided on the card, sign it and send it to the clerk's office," says Greene County Clerk Richard Struckhoff. "If you can't find your voter card, obtain a change-of-address form at our office, online or any school or library, or simply send us a signed letter listing your new address."

Whatever you do, Struckhoff says, you should not wait until election day. Polling places will be busy and phone lines to Struckhoff's office will be jammed.

If you live in Greene County, you can find an address change form by clicking here.