Knowing how to clean yellowed plastic can make you a superhero when your child's favorite white plastic toy has started to turn yellow. Learn how to whiten yellowed plastic with bleach, baking soda, ...

Yellowing air vents can be a major eyesore, especially when they stand out against clean, fresh walls and ceilings. This process is normal wear-and-tear — over time, a mix of heat, light, and air ...