Great write-up, I am also in Madison. I now use a rinseless wash 90% of the time. It`s faster, I don`t have to move my car out of the garage, and it eliminates the aerobic activity required of a conventional wash when you have hard water. Re: water in the garage, I have an old beater bath towel and when I`m done, I just drag it on the floor around the car w/ my foot. This leaves the floor damp, but w/ no puddles. The damp floor dries in an hour, even at 40 degrees. My wife was dead set against me washing my car in the garage, but after she saw this, she now has no problem with it.