Ever since I've been taking The Bridge to shows, I've made use of a set of these very useful plastic storage boxes that I purchased on Ebay:
With all of the compartment separators removed, the three long sections left are just right for all of the small tools you might have.....tweezers, scalpels, small screwdrivers, etc. I even used them to store my rolling stock....using black foam rubber to form slots to hold two or three rows of up to four locos or carriages, but with one problem. With the foam sheet you cannot get many items of rolling stock in one layer....and lifting out a section to get to something underneath means you have to remove all the locos, etc from the top layer first!!
So, I designed and printed a set of trays.......
I can get three trays per box section, and each tray has four rows that will take up to five carriages, etc per row. And the trays easily lift out and will then sit in the open lid!
And here's a box full of trains alongside a box full of my most frequently used tools.
Now I have no excuses about not keeping all my rolling stock neatly stored!
PS anybody interested in a set of these trays, let me know and I'll cost them out.....