I put mine in 2 1/2 x 2 1/2 inch paper holders and then into a 3 ring binder. I have found that the larger the binder the better. Most of mine are 5" or 6" thick and I try to get them at resale shops, flea markets, etc. New they cost about $25 each! These are then stored in two lockable filing cabinets which are now overflowing. I was hoping to get a third cabinet from Santa but he didn't make it this year.