A nice orbital buffer is easy to use and if you don't know how to use a rotary buffer it's perfect. I suggest buying anyone because it's like 20 bucks for a cheap little one. You could go higher, but that's if you are a real detailer or what have you. Wash your car then dry it, then clay it, then wax it with a buffer for a SIMPLE clean, shiny look.
The more advanced things would take a lot of other things, but Greg knows all about that
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