[beautimus]

you sound alot like me on this issue. i used to have 2 craftsman roll around boxes and needed a third. but came into a great deal on a lista brand cabinet, its 5 ft long, 6 ft high, and 24 inches deep. with big ball bearing mounted drawers. one drawer was damaged that was about at the belly button level. so i removed it and mounted a work surface in its place. when i get done with whatever i am working on, the work bench rolls back into the box.
now i have the room to say " if its a drill, or fits in a drill its in the second drawer from the top. (hole saws too)
the drawers were to big to organize my screw drivers in so i mounted angle iron in the drawers and used plywood to make a sliding platform in each drawer at half the height from the bottom of each drawer.
now all my sockets are in one big drawer, standard on one side metric on the other, with screwdrivers on the slider above them.
the next drawer is hand wrenches in all flavors, standard on the left, metric on the right, with pliers and cresent wrenches on the slider above them.
thats as far as i have gotten with it, but i think i can get most of my tools in this thing.
but yes, wood working tools still go in the home made wooden box under the work bench, another has masonary tools, and still another has drywall tools. so i am looking for another big cabinet. and no i never put non tools in my tool boxes. i use those plastic parts drawer things from wally world for small parts and stuff. anything in a can bottle or a tube goes on a shelf, not the tool box. i usually make a mess if i do that. but then thats just me.
good luck to you