Lawrence,
I find a broom to be far more effective for removing the snow off my windshield...
Actually though...It's been so cold here in Montana the past 2 weeks that I've been using a Leaf Blower for the deck, sidewalks and cars!
Two mornings ago, it was so cold, my dog froze to death on 3 legs next to a fencepost.........(drum rolllll cymbal groans)
It was colder than a Pawn Brokers Heart!