[Kamog]

If you can't decide which one to use, maybe you can wear a shirt with a pocket on both the left and right sides. Then you can use two pocket protectors.

Left pocket: mechanical pencil, blue pen, slide rule, red pen, x-acto knife, tweezers, circles/electronics drawing template, 3.5" diskette containing some MathCad files.

Right pocket: calculator, black pen, black Sharpie marker, screwdriver, mini note pad, second blue pen, small mag-lite.