Living dangerously, I know, with a vampire on a neck lanyard
Photon REX: rechargeable via vampire off batteries, small, bright, multi-talented, one simple GITD operating button operates all modes, light weight, wears very well on my neck lanyard, hands free is outstanding because I always have my hands full, a competitive $20 + shipping from NGK (I always have other stuff on my NGK wish list, I know that you know what I mean, so shipping is absorbed on multiple fronts).
I've been wearing this for work & play on a string neck lanyard and I love it. Doesn't come on by itself. Works every time. Hands free usage on the neck lanyard (I supplied the neck lanyard myself, as the light comes with a keychain fob and not a neck lanyard) lets you walk around in the dark carrying stuff and see where you are going just as long as your gut doesn't block the light, that is .