I use the 6" x 9" manilla envelopes, for the patterns with torn envelopes, I also use quart size ziplock (although you can't close them, the patterns are still protected). But I think what your asking is where do we put them? Right? I found years ago a fabric store going out of business and bought one of there pattern cabinets, and any filing cabinet will work too. Check your local thrift stores: salvation army, value villiage, or goodwill, I was also able to pick up 2 filing cabinets (the wider ones) at the local value villiage for $10 bucks each. Try craigslist too, businesses selling off there filing cabinets.