My EDC also changes based on what I'm doing:

Work: multitool goes into briefcase along with a few other "just-in-case type things". SAK goes into pants pocket.

Flint and steel is always on my keychain.

It is amazing how, in this society, you can have pagers and cell phones clipped to your belt, but if you were to put on a small knife pouch, you must be looking for trouble. Too bad we can't include knives in business casual dress.