DIY pipe shelf construction- this might be the perfect solution for a cheap, large storage/ desk space in my office. I would put a thin pipe in front of shelves to hold things in place. This would make a fabulous pantry - wall-to-wall, floor-to-ceiling!
DIY Shelving Unit: The project is great since it's totally accessible and customizable. You can pick up all the parts at any local hardware store and design the shelves it to fit any space. It's a big impact for a small investment of time and cash.