First, I start the car to let it warm up. While it is warming up I brush the car off completely with an extandable snow brush. It is shaped like a T so that you can pull snow and not have to push it off in a sideways motion. One end is a scraper and the other end is a brush/rubber-blade combo. I use the rubber blade for wiping the windows dry (like at gas stations) as they melt. I have yet to use the scraper. It was the best $12 I have ever spent.
-Brian