I have the usual Whitmans, one Dansco, another folder or two, and most of the rest in 2x2's, although the Romans are in flips. Those are mostly in plastic bags (along with some loose foreign coins) or in cardboard trays, some of which I cobbled up myself. And nearly all of those are in drawers which are not very well set up for a coin collection. I need to look ahead and decide where I'm going with this fun activity; then I need to start looking for a cabinet like Latman has. I do believe I've seen card files (from libraries) before at auctions - maybe I need to troll my own school district where I teach to see what they've discarded. Unfortunately, I don't have room for another cabinet, so something will have to go ... maybe my radio station coffee cup collection? lol