It's a problem with the climate control system for me. I have a 1999 SE Sport Duratec. My windows would get so wet that the water would drip off the winshield in the summer and would freeze into ice in the winter. My problem is that I was leaving the mode switch on the climate control in any position except off. When I finally got smart enough to turn my climate control to off before I exited the car, my windows never fogged or iced again.
