Hi - I'm another Arc AAA convert - have had Photons on the keyring for several years, which won't change, but the AAA is now on a bead lanyard around my neck. My next change will be to add a Berkely point clip - I've seen this on CPF and I really like the flexibility it offers (second post on the thread linked below).
Clip on Arc AAA

I like the idea of the clip on the Arc rather than on the tether point - the Arc can come on and off quickly, and could be attached somewhere else for lighting as needed, freeing up your hands. I just ordered several of these "stainless steel mini clips" from Berkeley Point (berkelypoint.com). They're a bit pricey, but they have very good word of mouth on CPF. Lots of other interesting odds and ends on Berkeley Point, as well.
Anyway, I'll post once I get them in and get a chance to try this method.
Dave