Untidy paperwork, receipts and folders still need a home in this "paperless" world we were promised. And some units are attractive furniture items as well, a plus in a residential setting where the challenge is to avoid allowing the home office to take over the home and impact on the aesthetics of living areas. Choose towers that take advantage of vertical space and castered systems that can be stashed out of the way when not in use. Steel adds functional appeal as well as solid construction. Steel is an ideal choice due to its exceptional durability.