Now that the primary elections are over (as they are in most places), put your support behind the Republican candidate. Unless there is an insurmountable point of disagreement, just hold your nose and vote for that (R) candidate! This year especially, it is just too important to not let the Marxists win. No candidate is unelectable if we can get enough support behind him or her.
At the very least, don't be like some here in Nevada who just can't stand Sharron Angle and see Harry Reid as their only alternative. Vote for a libertarian if you must, or an "Independent". Please, please, don't vote (D) just because the others don't have a chance of winning!