That's a nice little wrench. I made a stubby ratchet for myself out of an extra Husky I had:
Stubby 15mm, Dremel Cut - Album on Imgur
I keep a 15mm on it and carry it on longer rides.
I recently ordered new tires for my ride. I got some Panaracer T-serv protex 700x25's with the reflective sidewall. Then I'll feel OK yanking the ugly reflectors off my wheels.