Monster Storage box (Ikea and foamcore!) - The more money I save on not buying storage goes towards more expansions!!!
Top Layer - Just more space for future monsters (under construction)
Nice, You actually inspired me to use same box (if you used TENJA from Ikea) to create "whole game in one box" set of inserts. I searched for ideas of storafe solution amd saw this thread some time ago and remembered only the mention about Ikea box with inserts in it and instantly started drawing sketches.