As I've been collecting the expansions to MoM, one of the things becoming rapidly clear to me is that it's possible to end up with dupe cards. Enough so, that they aren't really helpful to keep around. For instance, I now have enough "You find nothing of interest" cards to create the world's most boring map ever. But it's also an issue with some items, doors, etc. I'm just wondering if anyone has worked up a list of cards that you don't need to keep around necessarily, or what the max number of each card is you need to play all the expansions.

There really aren't any unnecessary duplicates.

Print on Demand expanions are supposed to be kept separated into their respective scenarios, so you don't need to worry about duplicates there.

Ok so the PoD are kind of"standalone" so you don't have to shuffle some base game cards with them? LOL neat!

Besides investigator stat cards, I believe the only base game cards you need for PoDs are a couple specific keeper action cards.