GPS Navigation
GPS is becoming more common in a variety of uses. The most upsurge in GPS usage has been as a navigational tool in cars.
With the prices of the GPS devices going down more and more people are throwing away the trusty road map. Even PDA’s can pick up the GPS signal.
The best part is that it’s free. Once you buy the hardware to be able to receive the GPS signal you can use it for free whenever and whereever you want. Better get in quick before they start charging.