Good stuff, but Zaino would make you a true believer.

do you clay your car and then use the paint cleaner? isnt that what the clay bar does?

Clay and cleaner are different. Clay is to take off any contaminates off the surface (eg. rail dust, tree sap). Cleaner is to make sure there are no old wax, or any other chemical on the surface to prep. for waxing/polish. I could be wrong, but this how I interpret it.