Using a rag to wipe up interior moisture may also prevent your dash from warping. Another way to eliminate thin frost buildup on the interior of your windshield is to use a chamois sponge. These sponges are made from an absorbent fabric and can also be used to clean the frost from your refrigerator or freezer.
Also available to aid in clearing frost from your windshield are portable vehicle defrosters. For less than $50, this accessory plugs into your vehicle’s cigarette lighter and can be placed by any window. It will blow warm, dry air and will help clear up your windshield.