Have you considered hiring a professional organizer?

Shop at The Container Store, Ikea, and real office furniture stores (not Staples and the like).

But if you've already got the wall of cabinets, the problem is you. Sammy has the right idea.

Why are your papers all over the floor? Do you not have storage close enough to your desk? Is your current storage not easy to use (awkward handles, heavy, etc)? Do you like to see everything rather than having it behind drawers/doors?

If you can think about why your papers are all over the floor, you'll be closer to figuring out what type of storage will actually be used and helpful.