Yeah, but you're in New York, so it's probably a good idea. :-)

I carry two (HDS U60, Arc AAA premium) but I never think about the Arc. It's on the keychain and serves as a "too small to notice" back up. I decided a while back that a flashlight was the most important urban tool for me, so it's the only thing I carry two of.

Wish Arc would make the AA again, using the same LED as in the current premium model...