This is the easiest but it will leave spots on your car from the minerals in the water. The water drains off without leaving any spots. I have used this on painted surfaces as well, but there could be a possibility of a reaction between the chemical and some paints. If you want to try this trick, try it on a part of the car usually not seen such as the inside of a hood or the bottom of a door first. Wiping the car body dry is the most common method of preventing water spotting.
Most people use a chamois to dry their car.
A chamois is made of soft leather from a sheep or deer and works well to dry a car. The leather quickly soaks up the water as it is wiped over the surface and then it can be wrung out to wipe again. A chamois must be cared for if it is to last. After wiping the car, wash the chamois in clean water, and then hang it to dry before storing it. Instead of a chamois, soft cloth can be used to wipe the car.