There is one final option that you should consider. Your cell phone may have a GPS feature on it. On some models, this may be useful only as a last resort. If, however, you have a Smartphone with a decent sized screen, then this may be a good day to day choice. Just be ready to invest in a stand for the device. It may cost you a little bit, but, in the long run, it will be much less expensive then buying a GPS unit.