IMO, Romney should go for Gov. of California. He recently bought a house in Duncan Hunter's backyard. He can continue to prove his executive expertise by fixing the economy and fighting the social issues on the front lines in Commufornia. He can continue to prove himself there for those who just started to get to know him this go around. If he does go for it and wins he would be the second American in history to be the Governor of two states. Bonus points for whoever posts the first one.
That is an excellent idea.