While many luxurious car models may boast of their in-house GPS navigation systems, let's face it - portable GPS systems are a smarter alternative than their counterparts. In fact, did you know that car owners often spend up to $2,000 to add GPS systems to their cars - while similar products can be purchased for only $500?

Remember the days when GPS units could only be installed on the dashboard of your vehicle? We do too - and that's why we were thrilled when we learned that our favorite techie toys are now incorporating GPS technology from trusted brands like Garmin, Magellan and TomTom.