i have some minor ,but nevertheless unsightly,paint chips on the bodywork of my car and i have purchased a small two pack kit of matching paint and lacquer. Can someone tell me the best way to apply these please as there are no adequate instructions with the kit . I have also found a tiny rust spot of about 1/8" in dia and i would like to deal with this now before it spreads. I suppose i should bring it down to the bare metal to remove any evidence of the rust but what is the best preventative treatment after that?