Originally Posted by michaelnel
I use the Take-A-Look one mounted on my glasses. Couldn't ride without it at this point, I'm so used to it being there.
A BIG second to that. I even carry a spare in case I'm far from home and it (somehow) get lost, although I've not lost one yet. You might have to have the right temples on your glasses to hold it well, but I have found such eyeglass-mounted mirrors the most stable. They don't vibrate and so give the clearest view. The Take-A-Look is the best.
Bill.