Okay, so spraying vinegar on at night doesn't work at all. However, spraying it over the ice in the morning seems to help...a little. Maybe that's what the article meant-though I'm sure it said "the night before". Anyway, I still hate scraping. Thanks abs for the hint on anitfreeze in the window wiper fluid. I'll give that a try...and possibly try to remember to turn my car on a good ten minutes before I have to leave. That's all of the helpful hints for now.