My daily carry, regardless of what I'm wearing (pisses the wife off when I'm in a suit/tie and my knife is still clipped to my pocket), is a Spyderco Serrated Byrd. I use it daily at work, I've cut my food with it (hey so it gets some grease on it at work, just helps the food go down better), basically it's my GP knife. A cold steel tanto sits wedged between my seet and the console, I've got a rather rusty (but sharp) machete under the back seat along with a rambo style knife.