A man who knows that well is Tim Leatherman, the inventor of the Leatherman Tool. That’s a pair of pliers with additional tools stored in the handles, like screwdrivers, a saw, wire cutters, and a bottle opener. It’s like a Swiss Army knife that converts into a tool belt.
Tim came up with the idea during a vacation to Europe in 1975. Travelling on a budget, he rented the cheapest car he could afford. It broke down repeatedly throughout the trip.