Wow. Y'all really are a bunch of nerds. How many pens can y'all fit in your shirt pockets?
Well it's a trade off:
With my pocket protector: six 'common' size pens, arranged in Roy G. Biv order if multiple colors are present. Mechanical pencils will be at the 'V' end of the pocket, while mechanical erasers will be placed at the 'R' side of the pocket.
Without a pocket protector: I can fit up to 8 without excessive crowding. Crowding is bad, since it may cause the pens to not line up in order in a straight line, as may also result in me picking the wrong color pen (always a problem since I like to color-code my notes in meetings, etc).
However, if I only use pens then I will have to forego any other gadgets I may have, such as screwdrivers or a short, triangular multiple scale ruler used for drawing.
Yes, I was an engineer before I was a priest. And no, you don't want to learn what I must do to organize and categorize my food before I eat it!