I have a LOT of thread because I longarm for the public. I keep my Glide thread in two large drawers. All other is in a cloth square box, the kind that folds flat.. on a shelf. I marked on the fronts of the cloth boxes the types, I.e.; sew fine, King Tut verigated, Bottom line...etc. with so many different kinds this makes it easy to find them and they are protected from sunlight.