In the winter it is inevitable that you will have to remove ice, snow, and frost from your winndshield. You will want to make sure that you clear the windshield, side windows, rear windshield, and side mirrors. In order to start your vehicle so you can start to warm it up, and warm up the windshield, you will want to make sure you can get in your vehicle. You may need to have a lock de-icer to get in. Lock de-icer is simply a specific concentration of isopropyl alcohol. It’s the same chemical compound found in rubbing alcohol, for example, but at a much stronger concentration. Lock de-icer, is at least 98 percent isopropyl alcohol, while rubbing alcohol is typically between 50 and 70 percent strength. That potent alcoholic liquid works by lowering the freezing point of water. Lock de-icer is designed to act as a fail-safe to open your doors when the small key hole cover flap meant to keep moisture out of locks and prevent them from freezing up doesn’t do the trick.