hey guys just wanted to give a tip since I didn't see this anywhere in the many pages I have read so far. For cleaning the paint surface prior to painting, I would suggest using a microfiber towel. They are as cheap as real tack cloths, and aren't oily/gummy like the real things. They quickly and easily pull dirt/dust/crap off the paint surface just as good (if not better) than cheesecloth type tack cloths. The local Checker store (Kragen/Schucks for you mainlanders) sells tack cloths at an unbelievable $4 a tack cloth. I went to Wal Mart and bought a 12-pack of cheap microfiber cloths for $5. They are pretty crappy in quality when compared to the high quality cloths I bought and use for my daily driver, but in my experience, they have worked just fine for tacking my car prior to rolling on another layer of paint. They are also great towels for wiping away lifted paint particles when wetsanding