Never felt the need to use one. I can hear traffic coming up on me (never once been surprised) and I'm also able to turn my head to look behind me if needed.

I once again reiterate, I am not hooked. yet

Another vote for the glasses mounted Take-a-Look mirror. It is, by far, the best mirror I've tried (and I've tried a bunch of different handlebar and glasses mounted models).

I ride mostly on semi-rural roads, and the mirror allows me to easily keep an eye out behind me without having to twist around. With the mirror, I can check behind me a lot more frequently than I could be turning around, and I can see cars approaching long before I can hear them.

We could drive our cars without rear view mirrors, but why would we? A good mirror, like the Take-a-Look, increases "situational awareness"...and that's a good thing.

Although some people hate them, I like my Delta Insight Mirror. Stays out of the way so I don't ram into stuff like doorways. I just bought the Take A Look mirror but I haven't tried it yet. I saving it for when my bikes loaded for touring.

http://www.rei.com/online/store/Prod...m_cat=datafeed

I've just invested in a tiny bar-end mirror made by Zefal. It needs some mods to suit my purposes, but I saw these in Europe around 18 months ago, and they are discreet and small enough not to get too much damage. I have yet to fit it, but will report back on its effectiveness in due course. HD, costs around AUD$22.

something different in the mirror market one that fixes to the frame itself, it locks into the head and down tube an alternative for those that don't get on with other mirrors, have a look at www.bike-eye.com it may be what your looking for!!! A quote from another posting regarding mirrors I found quite intereasting " a mirror is there to help you see if there is something behind not to help you see that there is nothing behind"