DIY: Pretend Pull Out Shelves - this is a brilliant & inexpensive idea! If you have deep cabinets & can't reach what is in the back, put everything in plastic bins. When you need something, pull out the bin!
Space-Saving Ideas for Making Room in the Kitchen: Shelving space inside Sarah and John's wall-mounted cabinets is maximized with stackable wire racks. The racks come in different heights and widths, and they allow various sizes of plates to be stacked neatly within the same cabinet. From DIYnetwork.com