I had a big rectangular under-bed box for each kid and just tossed stuff in there as it needed to go there....100's on papers, report cards, artwork, projects, etc. So it's not exactly organized but is separated by kid, and in a dustproof, waterproof (I assume???) box to be shared at the right time. They are 27 and 30 this year and not ready to appreciate their boxes yet! :)