Couldn't bring myself to vote for either of them. So I just wrote in the name of my brother-in-law, who would actually make a better President than those two.
Everyone tells me that such a silly gesture is a complete waste, that if you want your vote to count you should at least pick the lesser of two evils. (They told me this after I voted for Nader in '04 as well.)
But I'm too selfish. I didn't want to take a chance of voting for the victorious candidate, in which case I would have to look at him for (at least) four years while thinking to myself, hmm, I helped elect that guy.