Here’s my take on a toolbox observing the principle of “first order retriavability” as popularized by Adam Savage. In short, all tools can be reached without moving other tools out of the way first.
The box itself is a Draper 48566 with the trays removed. The insert for the tools is built from foamcore to hold my most used tools on the front side, and a selection of less needed tools on the back. As it happens, my list of commonly used tools appears to be so short that there’s plenty of space for expansion later!