1. You’re a city dweller
This one probably comes as no surprise. In walkable cities with good public transportation, many residents don’t drive every day—or even every week. If you only need a car for the occasional shopping trip or weekend away, car sharing can save you thousands of dollars a year on car payments, not to mention parking (and parking tickets!). Most car-sharing companies (including Zipcar, Hertz, Enterprise and Mint) offer a variety of membership and rental options depending on how frequently you plan to use the cars.