The high school I teach at was geting rid of these little carts from the library so I snagged one.
It fits perfectly between the sets of drawers that make up the table that my display cases sit on.
I have some old metal locker baskets that hold my boxes. On top is a small divided case that I keep Oakley parts and some watch parts and some small tools.
It doubles as a small workspace for lens swaps, custom work, etc.