I'm a repeat user for files in storage. I like the combination of a fair price rugged construction and the ability to stand up to being stored on top of one another without buckling.
I used the boxes to store my off-season clothes on the shelf above the closet rod. I store my sweaters in these boxes on the shelves of a bookcase I have covered the outside of the boxes with decorative paper.
These are great boxes--I use them pretty extensively. They are easy to assemble (very clever design). The only deficiency in the design is how the handle flaps fold in--they don't folded up. This is fixed easily with a little packing tape wrapped through the handle hole and an around. This has the added benefit of strengthening the handle area--the weakest point of the design. My only issue is that they come in packages of 10. A package of 5 might be nice but then I would probably have to visit Staples twice since I really do use them quite frequently.