HOMEMADE STREAK-FREE WINDOW CLEANER: 1/2 bottle of “Jet Dry” (about 3.5 oz), 4 T rubbing alcohol, 1/4 Cup Ammonia, 1/4 cup powdered dish-washer soap, 2 Gallons Hot Water - Spray window with water. Scrub window with solution. Spray window with water. Let air dry and enjoy!