As we all know, a lazy person named Susan designed a turntable for condiments. But her condition prevented her from evolving the product, and it wasn't until someone made a Pac-Man-shaped Lazy Susan for corner cabinets that we saw any further innovations in the space.
However, inventor Dennis Clayton, a former aircraft service technician for Lockheed Martin, came up with a crazy idea: What about a Lazy Susan that would fit inside ordinary cabinets, allowing you to access stuff in the back? The D-shaped Stow-and-Spin was born.
The flat edge means you can close the cabinet door. (At 11" front-to-back, the Stow-and-Spin gives you an inch of wiggle room as the standard upper cabinet depth is 12".) Sure, you lose a little real estate in the corners, but the 360 access is worth the trade-off. And the little dais in the middle also rotates, independently of the outer ring, allowing for more flexibility.