4. Using baking-soda car cleaner
You can actually make your own baking soda car cleaning solution to wash your car. You must have a gallon-sized jug first. After pouring ¼ of baking soda into the jug, you need to add ¼ cup dishwashing liquid. Then you can fill the jug to the top with water. After shaking it well, you need to store the concentrate for later use. When you’re ready to wash your car, you need to shake the jug vigorously and then pour 1 cup of cleaner base into a 2-gallon water pail. After filling the pail to the brim with water, and stirring it well, you now have your homemade cleaning solution.