which car do u hav? colour? condition of paint?
Cleaner Wax is abrasive and is used to clear minor imperfections in the paint. If u hav a relatively new car, opt for Step 3.
Also, neither Step 3 nor Cleaner Wax come with applicator pads. so u'll hav to get one. but don't go for Sonax pads available at Shahid Autos. they r just pathetic. The applicator pad that comes with Cosmic is a lot better so get that one.