I have one at work, and several at home. The current job I am working on is installing office furniture. Being a carpenter, and used to wearing a tool belt, carrying a tote from room to room was a nice change of pace. That tote has a drill, several drill bits, a glazier bar, a 1/4" socket set, a tape measure and a utility knife. Also, a pls laser and some other odds and ends.
At home, I have a tote of electrical tools, one of plumbing tools, and a whole box of other tools. I built a tool tote/stool(gary katz design) and thats what I fill up fro odds and ends in the house. Whether it be painting, trim etc.