I encourage you to go out today and vote. Vote your conscience.
Besides the Presidency, there are many races for Senate, House of Representitives, and right on down to your City Council.
It may even be the case that these local elections will have a greater impact on your life than the national ones.
So get out there and vote! (If you need a little help with who to vote for, Honors recommends: http://www.focusvoter.com/, but whomever you support, get out there and cast your ballot)