I have 4 toolboxes, all stacked on a dolly.
Toolbox #1: Kobalt 3-drawer chest.
Contains sockets, wrenches, allen keys, nut drivers, screwdrivers, tape measure, misc tools.
Toolbox #2: (wiring parts)
Contains solderless connections, shrink tubing, soldering iron, solder, flux pen, heat gun, wire ties, etc...
Toolbox #3:
Contains multimeter, leads, clip leads, batteries, magentic parts bowl, grabber, magnet, spare wire, etc...
Toolbox #4: (pinball machine parts)
Contains lightbulbs, micro-switches, leaf-switches, switch adjuster, resistors, diodes, transistors, fuses, etc...