There are the patterns I buy and the patterns I get off the internet or from magazines.
PURCHASED: In pattern storage boxes (purchased at JoAnns) separated by type - applique, patchwork, holiday, wall hangings (I consider these decor), crafts
INTERNET: I print free patterns, convert to PDF; save the PDF on my computer and file the paper version in my desk drawer.
MAGAZINES: If downloaded from the website of a magazine or cut out from a magazine, I do the above.