I have been storing mine, esp the ones from on line sites, in the 3 ring binders........BUT alas, I have too many binders now. .and I can not find anything with ease......one good idea I think I have tho.......as I have used each pattern to make a quilt, I have taken it out and those are all in a single binder that says "tried and liked" so at least I can locate the ones I have tried already and liked...........I don't use the plastic sleeves because they take up too much room in the separate binders...........