I share some genes with some squirrels and your grandfather.

I have two boxes for cables and power supplies. We have a couple of rental properties. In the garage I have boxes for plumbing parts, electrical parts, one for brackets, one with all kinds of fasteners, one for special tools. These are just small size moving type cardboard boxes, all on storage shelf. My helper laughs at why I keep all the junk, but he's the first to rummage through them when we need something. Everything somewhat organized enough that there's room to park the cars inside the garage.