For real. I have a tiny swiss army knife that cost like $10. I use it to open packages, and I keep it in my pocket's pocket. (You know, the little flap thing that's in your right pocket for storing loose change or whatever.)

Carrying around a knife that large seems miserable. I already wince when I wear pants that don't have a pocket-pocket (lol, I should probably find out the actual name). Carrying around a 4.5" knife is like ... why? Where do you keep it?