I have seven boxes. Six are similar to what you have pictured and the seventh is a top and bottom unit. Almost fifty years worth of tools. Ugh. No. Over fifty. Dang I'm gettin old.
I hate looking for tools or parts so the last 12 months I’ve organized some. I have two of the wooden top bigger boxes. One I strip and rebuilt heads. One I always have to clean off but do so to put transmission rebuild parts or engine assemblies. All my special tools are in my head bench. Wire, bushing drivers, pullers, etc go in the bottom of the other one.