Was looking into detailing cars on the weekends and was conflicted with a few details, help would be very appreciated.

I am a detailer at an auto-body shop during the week, but on the weekends I don't have much to do other than spend money, I want to start my own side detailing gig for the weekends and drive to people and detail their cars, I am just stuck on how much I should charge to detail their cars. The other dilemma being what I should do about water, i'm unsure if people would allow me to use their hose/water whilst washing their cars. via /r/cars http://ift.tt/2tEC21A