I was able to fit the sets of cards nicely into the trading card sleeves. I split any 20+ stacks into stacks of 10 (save Estates, which were split into stacks of 8 ), any 15/16 stacks (Potions and Spoils) into 8/8 or 8/7, and all 12 and under stacks remained full. I left 58 empty slots for the Empires cards, events, and landmarks. Ended up being able to cut down the storage from 11 boxes to 4 (using the Dominion boxes as I can't currently afford a bunch of binders.) The cards are in the first three boxes, and the fourth box contains tokens, mats, and rules. I also have the little Base Cards box, but I felt like keeping that separate. It doesn't add too much space, so I didn't want to bother splitting all the piles. I also didn't add the extra base cards from Intrigue to my storage solution, as I have the American-printed version, and the coloring is way off (especially on curses. They look absolutely horrible.) The Base Cards solo box, plus the original Dominion base cards are enough. It's still ridiculously heavy, but it'll take up less space now.