Cleaning you rig, sanitizing your FW tank.
Folks, I was in Sturgis, SD a few days ago and the guy next to me had an '07 Holiday Rambler Endeavor. It was the cleanest coach I'd ever seen.
He has never turned a water hose on it, but instead cleans it from a bucket filled with half water and half vinegar. He then uses "The Absorber" (available at any auto parts store) to dry it off. No chamois needed and no spots when he's finished.
Then today I was told at the Escapee Rally in Gillette, WY that hydrogen peroxide is great for sanitizing your fresh water tank. Does the same thing as bleach, but neutralizes in the water after awhile, so that you can even drink it.
Someone else told me that they use the peroxide to clean bugs off their windshield.
I've not tried any of these gems yet, but plan to ASAP.