We've used a similar corner shelving unit to create space in a small 7 by 9 ft room. It's a great, easy shelving solution for small spaces (although installing it was a bit tricky as the walls weren't plumb.
Keep your fireplace stocked with this firewood storage rack. The lower area holds your fire logs securely, while the upper area is a great place for keeping kindling. You can build one in just a couple of hours using four boards, a miter saw (or circular