In the past I've kept most of my units in binders except for the few that have "big stuff" and they have their own tubs. This year I've gotten more into making games and activities that have pieces. When its time to put them away they go in a ziploc and when I try to put them in a page protector in my binder they make it too hard to close the binder. I thought about making a box for my games but I prefer to keep my units together as much as possible. How does everyone else store their units?