A couple of good replies already, sites such as "meguiars" and "clean your car" are full of information and how to videos.
One slip up that happens regularly is the use of the word polish, in detailing terms polishing does not mean the final coat, waxing and sealants do. It seals in the previous polished layer.
"Sheeting water" after the final wash is very useful and using the 2 bucket system, any way I'm not trying to teach how to suck eggs the best way is to watch the videos, a picture says a thousand words etc,etc. Happy cleaning.