I got asked this as I was walking out of the computer room at work today. I thought for a second and replied two. The questioner figured 3 or 4 or 5. I guess my reputation precedes me. It's always better to have a knife and not need one than to need a knife and not have one.
Here is what I have on my today. Well most days.
A Leatherman Squirt and a SOG Blink. Both are socially acceptable in the workplace. The Blink, since it's an assisted opener, sometimes startles people till you show them it's not an automatic.
Les Voorhies makes my 'Sunday go to Church knife'.
- This count does not include the three in my daypack :-)