The kids and I had a bit of a scary experience a few weeks ago. We were driving to school, and I noticed my windshield was covered with a film of dirt and the salt they put down to melt ice on the roads. No problem, I thought, as I pushed my car's Windshield Washer button. The windshield cleaning fluid sprayer worked, but all the windshield wipers did was spread a huge smear of dirt across the entire windshield. I couldn't see anything in ...