You can polish the covers on your car's headlights to a clean, clear state without having to replace the entire. Sprucing up your car headlights helps improve your vehicle's visibility from the driver's seat and on the road. Polishing takes just a couple minutes and some elbow grease, dependent upon how bad the damage is. Resource for this article:
How-To: Polishing your headlights. Headlights, the lamps at the foremost end of the car, provide illumination for you whilst you drive on dark roads or during rainy weather.