I'm in the process of selling/trading in my car. I want to get it looking as good as possible before showing it. What places do you recommend? I thought about taking it to Mr Car Wash or Bubbles. The main things it needs is a good carpet shampoo and something to give the exterior a good shine. Overall it's in good shape but the roof as some tiny spots (oxidation?) that need to be taken care of. Anything else I should pay attention to before trying to sell it? Any suggestions? I don't want to spend a tremendous amount. Thanks.