We have a car that is about 10 years old. Lately, we've noticed that the headlights just don't seem to do their job at night. When we took it for service, we were told that the headlight plastic has yellowed due to age. They said that it would be expensive to fix because they'd have to replace the whole headlight assembly. We decided to wait since the car has 250,000 miles on it and we're not sure how much longer we'll keep it.
Does anyone know of a "home rememdy" for the yellowing?