Real estate agent Laura Musall shows the new taillight on her 2004 Nissan Altima at her home in Fishers, Ind., in this June 22 photo. Musall’s taillight burned out and her husband thought he could make a quick repair by replacing the bulb. He couldn’t easily remove the plastic light cover, so he ended up prying it off with a screw driver, shattering it in the process. The replacement was $250 from the dealer. Many car owners who try to save money by doing their own repairs find that it costs more in the end after a botched attempt.