Scott....I'm the same as you and have looked into this several times. It always seems that the answer is either very expensive or requires constant reloading, which again becomes expensive. I have a water softener attached to the house, but it's only hooked to the hot water.
I just wash the coach in six equal parts. I always have a breeze blowing from the front of the coach to the rear. I wash and dry the front, then half of one side, the other half and then move to the opposite side. The rear gets done last because I open the engine doors and wash out inside and then use the damp towels to dry this last.
My wife often helps too. She gets all of the low stuff and rims.
