Last week I used clay bar (meguairs kit) and finished it off with a quick spray wax. I can't help but think I have missed a step. Should I now get some decent polish? I.e, wash it with washing up liquid to be rid of the wax, dry, polish and then wax. If so, what polish is good for a Mauritius Blue colour? And is the Meguiars quick spray wax good enough for the job?