Originally posted by JimBlake
You don't have the recirculation switched on, do you? Make sure it's set for fresh air.
Yeah, thats a big one. But its basically getting the air temps inside and out to be the same. It sucks, and takes time. A/C is a way to cheat, but when you turn it off, its back to fog. So just warm the car up, and let the heat take care of it.