Based on replies to the thread I picked up a "Take-a-Look" mirror and after one eight mile ride, I love it. Took a little while to get adjusted, nothing major. Just have to adjust it, ride a bit so you're in your most natural riding position, then stop and adjust it, ride a bit more, took about 7 tries, then a couple little adjustments to get it just right. With one sweep of my head I can see everything behind me, no blind spots! I feel much safer now that I can see all around. At first I noticed the mirror while riding, after 10 or 15 minutes it was invisible.

I'll admit there was at least one time when I felt like the mirror would never be adjusted correctly, but when I got it right, I just knew.

Also felt like a nerd for a bit, but what do I care if people think I'm a crazy dentist?

Other than that, it's attached to my visor, I liked it on my sun glasses too but I wear those everywhere and did not want to remove it all the time. So it's on the visor as far back as i can get it, with a zip strap for that little extra grip.

Thanks for the replies to this thread!