Every state has a different deadline to register to vote in the upcoming general election on Nov. 5. Some states even allow for same-day registration on Election Day. Of course, you'll want to make sure your home state is on the list before you head to the polls. There's even one state that doesn't even register its voters.

It's National Voter Registration day, a nonpartisan action day to mobilize voter registration across the United States. Although it is important to register to vote in every state, as House, Senate, and down-ballot races will be decided across the country,

The time you still have left to register to vote, and your options for doing so locally, vary a lot depending on the state you live in.