Easy as Pi.

Pocket knife- right pocket.

SAK- w/ ferro rod and whistle attached, in the bin by my right knee, on the shelf under the desk. Same bin has a spare MiniMag and Gerber Inifinity. Right next to it is one of my Ka-bars.

Pocket knife, gentlemanly- reach forward, follow right edge of the computer monitor, and then find the surge supressor it sits on, sitting there along with my dice.

Bandana, slightly icky- hanging off the left side of the chair. It is my napkin. Also a towel on the back of the chair.

Bag of tricks with all of the above and a lot more- slide the chair back a foot to get clear of the computer. Turn left 90 degrees, extend left leg, continue leftward sweep.