How do you make windshield washer antifreeze?

To make windshield washer antifreeze, mix one part distilled water with one part isopropyl alcohol or windshield washer fluid concentrated formula. You can also use a solution of 1 cup white vinegar and 3 cups water for a natural alternative. Ensure the mixture is well-blended and store it in a clean container, ready for use. Always avoid using regular antifreeze, as it can be harmful to the vehicle's components and the environment.