Currently lusting for a Benchmade Griptillian, but until then, here are my regulars:
Kershaw Blur, the "little tag cutter," which is always in my pocket
My CRKT Desert Cruiser can be found in an outside pocket of my purse for emergncy use. It's good at getting hinges off doors.
When the mood strikes me, I'll carry one or more of these, too:
CRKT Tactical Tanto, although that thigh sheath is a pain
Ka-Bar TDI Law Enforcement Knife
And occassionally my Cold Steel Peace Keeper II