Wow, my thread came back. I don't have a mount, so I just tie about 18" of 550 cord to the eTrex and to the tank bag, then toss it in the tank bag; or, I just put it in my jacket pocket. I ride around, going down whatever road looks interesting until I've had enough riding for the day; then, turn on the GPS to see where I'm at. I usually glance at it a few times and head back home. I got the eTrex because it's small, has mapping capabilities, and can be used for multiple activities. I mounted a bracket in my Jeep and now use it to tell me how to get out of the woods when I'm ready to leave.
This little eTrex sure beats the hell out of a PLGGR.