After you've cleaned your car you can start working on the finish. You've seen those polymer finishes that cover up cracks and chips advertised on TV infomercials. They do a decent job on older vehicles. If you can find them in department stores and surplus stores you might be able to purchase a bottle for only a few dollars. Just in case the polymer isn't compatable with your car's original finish.
Many cities have high-volume auto spray paint dealers.
The quality's not high, but it might class up your car. Choose a similar color to your original finish. Many automotive parts dealers and department stores have protective add-ons for car doors. These decorative strips not only protect car door edges from chipping, but also hide existing chips. Your insurance company may even pick up the bill.