I was working on something like this but for physical objects. Fine grained categories take up a lot of space and involve a lot of containers,which then create

I was working on something like this but for physical objects. Fine grained categories take up a lot of space and involve a lot of containers,which then creates more objects to manage. They also take Moore effort to put things away, for only small gains in retrieval speed unless your memory is good enough to find the category box right away. My theory is an organization system should be optimized for storage rather than retrieval as that is what takes time and effort. But I have a lot of trouble with numbers or abstract symbols and don't want to spend forever learning them, so I use three letters abbreviations. All the categories are based on observation of what is already close together, rather than by trying to create a system logically, to take advantage of things I've seen in one place long enough to remember, and not have to relearn the location. So, I have a category BAM, for bulk artificial materials. This exists because there was a bunch of paint, some cleaning supplies, and paper towels stored together. There's also TAM, tapes, attachments, and materials. This has some screws, some ratchet straps, and some balsa wood and steel wire, some foam tape, and some keyring split rings, and a bunch of other stuff. If things overflow a container, I split them into subcategories.