The kind circulating on the Internet, don't close the door when you come home the night before, open four doors before going out to let the air take away the anger, and the thin ice will not stick to the windshield the next day. When the temperature begins to drop, the glass loses its temperature faster than the air, so in a short time, the glass temperature is lower, the air temperature is higher, and the rich moisture in the air condenses on the colder glass. This principle has nothing to do with the temperature difference between inside and outside the car. What I found the next morning was still frozen and meaningless.
Pick up a rag and cover the windshield. This method is very simple and really helps to prevent icing. Cover the car with cloth at night and attract it to the roof with magnets to prevent the cloth from slipping. The possibility of freezing in the morning is very low. Even if it's really frozen, it's not a big problem to peel off the cloth. And if it snows, tidying up the cloth can basically solve the problem. Some people may ask, can hot water be used for deicing? Special attention should be paid to this situation. The windshield is a float process, so the width of the temperature difference between cold and warm is not that big. After freezing, it is very likely that boiling water will be poured suddenly and the windshield will burst. Therefore, it is recommended not to use hot water in first aid, but to pour it directly with warm water not exceeding 40 degrees, which can basically melt ice quickly.
You can also put a bottle of antifreeze glass water. Especially when it freezes before winter, pouring antifreeze glass water directly on the windshield can melt the ice quickly. In addition to the above methods, if there is really no tool, you can directly scrape the gear glass with a plastic card. The hardness of the card is slightly softer than that of the glass, so it won't scratch the glass, but this method is a bit inefficient and can be used in an emergency.