What would you recommend for someone living in Northeast....I mean its cold in winter and besides I live in the city and dont have a house and hose to wash myself...you think bringing it to a place that will do it by hand but letting them use my supplies such as mitt, towels, maybe even soap)..this way they dont "use the same gritty mitts/towels used on the minivan in front of you" Or do you know of a certain type of soap or technique in which just a simple bucket of water will rinse it..since i dont have access to a hose..