Just for fun, after he gets his first tool box with several drawers, move a few tools into the wrong drawers.

My son was great at taking tools out of my box, the forgetting which drawers he got them out of, so he put them "away" someplace in the box he thought maybe they came from. I would go to the correct drawer to get a tool and find it not there, after a couple years, I figured out I needed yo look for that missing toll in every drawer, it could be anyplace in the box.

I ended up creating a place on the work bench to put tools after clean up, pile them all in the bench space and I would return them to the proper location. I had a lot less lost tools.