Venting is one way, I would use a dehumidifier. If you have enough moisture to wet the inside of your windows then you're getting moisture in other places you wouldn't want. A small unit will do the trick.
Tony & Ruth........... FMCA#F416727
Newmar Dutch Star 4320, Spartan MM Chassis, Cat C9, Jeep Grand Cherokee,with Hemi, hooked up with a Blue Ox Aventa LX, and Brake Buddy.