This election is seeing record numbers of voters, with reports at some stations of lines of more than 8 hours in early voting. If you experience a problem being able to vote you should report it. The Huffington Post has a page dedicated to news on voting problems and information on how to report such problems if they occur in your area.

In the past, measures such as Poll Taxes kept certain demographics (the poor, which often also meant minorities, especially in Southern states) from voting. Today there are still means employed to make it more difficult for people of certain areas to vote, like lack of voting machines necessary per capita in certain districts (see this report on problems in Virginia). Make certain your vote is counted, let nothing disenfranchise you.