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Haven't voted yet? Here's what you need to know:

Not too late

You can register at the polls today if you have one of the following: a driver's license number, a state ID number or the last four digits of your Social Security number. You also need proof you have lived in your current residence for at least 10 days, such as a utility bill.

Polls open at 7 a.m. and close at 8 p.m. Lines are expected to be long, especially in established neighborhoods, so officials say the best times to vote are between 8:30 a.m. and 4:30 p.m. But if you're in line at 8 p.m., you'll still be allowed to vote.

Where to go

Voters can only vote at the polling place that corresponds to their residential address. They can find out that polling place by contacting their municipal clerk's office or checking online at www.vpa.wi.gov.

What to bring

Identification is not required to vote. But if you have a driver's license, you might want to bring it in case there's a problem with your registration. That issue surfaced in the September primary among elderly voters. Proof of residence wouldn't hurt.

What to wear

Voters are asked not to wear political clothing or paraphernalia to the polling place on Election Day.The chief election inspector may ask voters who are determined to be electioneering or creating a disturbance to leave the polling place.

Election observers

Anyone can observe elections, and partisan operatives do. The Justice Department also is sending out 50 agents and lawyers to polling places. But observers must follow strict rules, including wearing identification and avoiding contact with voters.

Voting challenges

Your eligibility to vote can be challenged, but only for specific reasons. If it is challenged, you and your challenger will be put under oath, but your vote will be tallied.

See a problem?

Dane County residents who want to report suspicions of election fraud, illegal electioneering or voter intimidation can call the District Attorney's office at 266-4211.

Voters can also call the Government Accountability Board's help line at 261-2028 or Attorney General J.B. Van Hollen's office at 266-1221.

No excuses

This is one year in which you can't use the weather as an excuse to skip voting. It's predicted to be mostly sunny, with a high near 71, according to the National Weather Service.

Make it a two-fer

Home Health United and the Visiting Nurse Association of America are offering influenza immunization shots at several area polling places on Election Day. The "Vote and Vax" program runs from 7 a.m. to the close of balloting at polling places in Shorewood Hills, the villages of Cross Plains and Marshall, and the towns of Brooklyn, Christiana, Dunkirk, Medina, Rutland and Springfield. The shots cost $28, which can be covered by Medicare Part B and Medicaid. Pneumonia vaccinations are available for $35.

Election Day blog

The Wisconsin State Journal and The Capital Times are bringing their reporters together in a live blog to provide you with continuous updates throughout Election Day. We're also looking for your contributions. Tell us how voting went for you: How long was the wait? How did you pass the time? Did you run into any problems? Join us at www.madison.com on Election Day.