0 - Bucket Method
I'm a big fan of the Zero bucket method... My car is kept so clean, and built up with protection on the paint that a foam gun and pressure rinse takes all the dirt off. I follow the Larry from Ammo NY theory that you constantly build up layers of protection. So, initially I will 2 bucket it, with dish soap to get back to square one, clay, then paint correction with the rotary, polish and jewel with a foam pad, apply synthetic wax as protectant, then several stages of polish, finally a carnuba, then a carnuba spray. After every wash, again, I use the Ammo NY method to dry, of using Two Microfibers, one to simultaneously apply spray carnuba and wipe excess beaded up water, the second to follow and remove the remaining spray wax, so, in essence, each time I wash and dry, I'm applying what I've removed. This process keeps the paint slick either repel, or keep any contaminates from sticking to it, so, even tree sap and bird droppings, road grime, etc just rinse off with the soap gun and a pressurized rinse. I try to keep the least amount of fabrics touching my paint as possible. Even my wheels respond well to this treatment and require minimum agitation to remove brake dust.... When doing the drying process, I also only ever use straight lines, never circular motion. I have no swirl marks or fine scratches in my 2002 Black Opal Metallic CLK-430.