Most of these items are gear that I have used for several years commuting, but that makes my reviews more meaningful than something I've only had for a few months.

LIKES:
- Fenix LD20 Flashlight. There are more powerful lights, but for the size and cost, the Fenix is hard to beat. I get 5+ hours of run-time with mine and it always works, with a beam powerful enough for my purposes.
- Fizik Vitesse saddle. I know, saddle fit is very personal, but I went through a bunch of contenders before finding this one, include several Brooks. The Vitesse is like an Aliante and almost as light weight, but costs half as much and is wider than most racing saddles. It weighs half as much as my B17 and is more comfortable for me. I've now put this saddle on 4 bikes.
- Thomson Elite seatpost. High quality, durable and infinitely more adjustable than old-school Campy/Shimano designs.
- Shimano Dura-Ace bar-end shifters. I tried these for the first time on my new touring bike built up for commuting, and they are great. Almost as easy to use as STI shifters, but less expensive, lighter and more durable.
... more to come