A single-123A light in the pocket, usually my E1B or E1L (and I'm still waiting for my "defanged" E1DL), and a dual-123A light in my Hazard 4 reveille/Tumi Benning/Tumi Alpha, either my LX2 or E2DL.
I pocket carry the dual-123A lights from time to time as well.
I normally don't carry anything...