Should you decline the rental-car insurance? Why is the prepaid gas option almost always a bad idea. And why should you take a picture of your rental car before you drive off and when you return it (no, not for your vacation scrapbook)? T+L International Editor Mark Orwoll sat down with anchor Russ Mitchell on the CBS Early Show to talk about unexpected charges that can hit an uninformed consumer at the rental-car counter. For more on rental-car rip-offs, read the full story based on Mark's October 2010 Smart Traveler column.