To clean car headlights effectively, you can use simple household items such as toothpaste or a baking soda paste. Here is a straightforward method:

1. Clean the surface of the headlights with soap and water to remove dirt and debris, then dry them completely.
2. Apply a thick layer of toothpaste or a paste made from baking soda and water onto the headlight lens.
3. Rub the paste gently in circular motions over the entire headlight surface with a soft cloth or microfiber cloth.
4. Let the paste sit for a few minutes, then rinse off with water and dry with a clean towel.
5. For stubborn yellowing or fogginess, you may also use fine grit sandpaper (1000 to 2000 grit) gently to polish the lens, then clean off and dry.
6. Optionally, protect the cleaned headlights with a UV sealant to maintain clarity longer.

This method removes the yellow haze and dirt, restoring brightness to your headlights and improving visibility at night. Toothpaste and baking soda act as mild abrasives that polish the plastic without scratching.