At work, I carry a spyderco manix 2 lightweight
On the rare occasion I'm wearing pants off duty, I've been carrying a sebenza 25
As far as fixies, I've really ran the gamut. As of now I'm into CPK, Big Chris and survive! Knives. I also just received an adventure sworn that I like. Also a big fan of LT wright and bhk. Kabar and Becker will always be the top of my list as well. I'm trending away from the supersteels and the more expensive knives. I think I may stick to 1095, 01 and A2.
Also at the moment I'm really into hawks and hatchets. I have a couple Liam Hoffman's and I'm patiently waiting for a JK belt hawk.
Oh yeah, add SACs to those.