And for anyone as lazy as I am, the is Auto Magic Hydroshine.  All I do is wash the car using a wash mitt, two buckets of water , one with Wash & Wax the other starting as clean water to dunk and wring out the wash mitt, then after immediately after rinsing the car, while it is still soaking wet, I just mist the car with a spray bottle of this product and dry the car.  Done, nice shine that is reinforced with each washing and no white residue anywhere.  Quick, easy and effective.