A metal file organizer is perfect for storing baking sheets, cutting boards and pan lids. You can pick one up for a buck at a dollar store. To keep the organizer from sliding around, use rubber shelf liner or attach hook-and-loop tape to the cabinet base and the bottom of the organizer. Plus: 18 Inspiring Inside-Cabinet Door Storage Ideas
Pimp your Refrigerator; Cut decorative shelf paper to fit your refrigerator shelves. Cleaning bonus: If you cover the shelves with Press-n-Seal plastic wrap, just rip it off and replace it when the shelves get dirty.