Just to add on, try not to wash your car in the hot sun or in
hot hours (10am to 4pm).
The soap will dry before you finish soaping the rest of the body.
This will leave ugly soap marks.
While wiping dry, use a chamois cloth and have a bucket of water to
rinse the cloth every now and then, this is to rinse off any
dirt/debris that could be collected while wiping dry.
I am all along tempted to use high jet spray too, but I can't find
a electrical socket at where I wash.