I once watched a guy clean 2" of snow/ice from his windshield with the wiper blades on.

You guessed it...he'd wait till the blade on the side he was working swooshed away and then he'd swipe real fast with the scraper. I stayed to watch the entire clearing...which took quite a while.

If he'd only turned off the wipers...yada, yada, yada!

__________________
Minds are like parachutes. They only work when they are open.

~Thomas Dewar~