Storage cabinets are great for organizing small parts. Unfortunately the one I recently bought from Lowes didn’t come with drawer dividers. (I should have read the reviews first.)
I started to make my own from an old CD case but realized that they cracked easily and looked like crap.
Then I remembered I had a 3D printer, and smacked myself for even trying to cut them myself. I fired up OpenSCAD and before too long had a model of a divider custom fit to the drawers in my cabinet.
It took my Makerbot Cupcake a few minutes to print the first version and it fit really well.