Yeah, I do feel like I've gotten pretty lucky with this thing. The first time I intended to use it, I tucked it in my shoelaces and it fell out before I got the one block to my carpool to work (fitness center with shower means I run when I get to work). I got lucky that my wife was willing to scour the path for a little device.
My current rig is a the sensor tucked into the cut off corner of a plastic bag, then wrapped with scotch tape both ways. Then one large piece is placed around and sealed to itself with a small overhang. The length wraps around the laces and the overhang is sealed to the sensor. The tape broke on the lost run. But, I wised up and now I have a second piece of scotch tape making the backing double think.
I might buy a "real" holder, but I have to reach a milestone goal of losing 12 or 17 more pounds first.
well, do whatever works for you. the pouch that i bought was only $10