Whenever you wash your car, cleaning windscreen and windows is vital. If not, you’ll be left with a streaky mess. A windshield full of streaks can obstruct your vision and cause an accident. The special cleaners you can buy contain a lot of harmful chemicals. However, you can make your own, with some simple household products. Combine four cups of water, a tablespoon of bicarbonate of soda, and two teaspoons of dishwashing detergent. Put it in a spray bottle and apply it to the affected areas. This cleaner doesn’t only work on glass. You can use it all over your car.