Klein 10-in-1 screwdriver. http://www.kleintools.com/catalog/mu...ivernut-driver

Leatherman Micra http://www.leatherman.com/20.html#pr...n-Size&start=2

Littmann electronic stethoscope http://www.littmann.com/wps/portal/3...294958545&rt=d

Cause I use these daily, or at least many times a week.