I just spent 500 bucks on autogeek a few months ago and went through the same thought process. Get a good car wash shampoo and some grit guards with the double bucket method. Microfiber mitt and you're ready to rock. Just make sure you rinse the mitt often.
Use a good wax after you polish and re wax every couple months to stay ahead of the game.
The waterless wash works but use a lot of it, and don't expect to take off more than some water spots after a rain or some bugs after a cruise. It's not a substitute for a real wash. I use about 10 towels doing my whole car and they are pretty dirty by the time I'm done.
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