You let the water stay on it? Umm... waterspots big guy. They're probably all over your car. After all the soaps off my car, I take off the nozzle of the hose and just let the water stream onto the car because it really helps a lot with getting a lot of water off. After that, I use a Waffle Weave microfiber towel. Some people use an electric leaf blower. Not bad also. I sometimes use that for cracks and crevices when I'm too lazy to drive it around after drying it to get the water out. Anyways, a big microfiber or terry cloth towel should be fine. The absorber works well also. Don't dry your towels with a fabric sheet and don't wash with fabric softener. Just liquid, and air dry is good too.