GPS technology is a big part of my life in a variety of ways:
Garmin GPSMAP 196 : I use my 196 primarily for flying. The unit has a host of amazing features that aid in my overall situational awareness. It also serves as a backup to the primary instrumentation in the airplane (which has its own
GPS). The 196 also has a land and marine mode. Shan and I have used the land mode for several trips and it's really nice to pull the
GPS out of the airplane when we fly somewhere and put it in the courtesy car at the airport in a different city - makes it real convenient to find your way in an unfamiliar place!
Garmin Forerunner 201 : I just got this as a present for my birthday. It's a "personal training" aid. It's very lightweight, straps to your wrist like a watch and gives you information on calories burned (after you enter personal data), current pace, % grade, distance, time, blah blah. There's a logbook feature coming out which will let you log all of your walks, hikes and runs. It makes getting and staying in shape FUN!
Garmin Rino 110 : This is a GMRS/FPS handheld radio and a
GPS combined into one unit. It is a great trail companion. Shan can push a button on her radio and "beam" her location to my unit. This will be nice as we hike and photograph. Sometimes I get out the tripod and spend several minutes on a composition when Shan wants to keep on hiking down the trail. This will help me FIND HER when I get done and realize she's gone! hehehe
It should be noted - 
- that I am a proud shareholder of GARMIN stock!