If you don’t know where, lots of websites will help you, even Google Maps.
Don’t assume that the polls will come true even if you skip voting. Vote.
If you’re still undecided (have you been living on Mars, in a cave, under a rock, with your eyes closed and your ears covered for the past 2 years) or think the candidates are “the same,” I urge you to check out their websites: BarackObama.com and JohnMcCain.com and read about their positions.
I assure you, they are very different.
As David Sedaris said, it’s like being offered the chicken dinner or a plate of shit with broken glass in it, and asking how the chicken is cooked. No matter which side you’re on.