Originally Posted by
kenl666
I use a
Blackburn Helmet mirror. The advantage of a head-mounted mirror (helmet or glasses) is that you can turn your head and scan a wide area behind you.
The disadvantage is that now I always check my non-existant mirror while I'm walking down a crowded sidewalk and want to go around someone

Just like I check the lower right corner of the world when I want to see what time it is. Don't tell me I spend too much time on the computer.
Seems like choice of mirror is very much a personal preference. I've ordered a Take-a-Look eyeglass mirror in hopes of guessing correctly which one will work for me. I'll find out tomorrow if I picked a winner.