Boy-Howdy does Wasteland Warfare use a LOT of cards!
I designed myself a little slide-top box to hold my growing collection of cute little cards. This box holds all of the sleeved small (Euro-Mini) cards for the core box, the Commonwealth expansion, and Into the Wasteland supplement. With all my cards, there's no room for the dividers.
The top is notched on both sides to snap it in place. Lift the ends to clear the notches and open it.
I've also got Nukaworld, The Capital, Into the Vault, and settlement. I'll print and share a longer box (or maybe a doubledecker) When I get around to printing, punching, and sleeving those extra cards.
EDIT: 9/25 Printed and shared a longer doubledecker. It just barely fits all of the cards from every expansion less the AI cards that I keep in a binder.
The card-count in this game is truly ridiculous, and if not for the amazing single player experience this all offers I wouldn't even bother.