By adding Lazy Susans to the corners of your pantry you can turn dead storage space into very useful space.
This is an easy DIY project. You can get the Lazy Susan hardware at youl local home improvement box store.
Combine that with some 3/4″ plywood or MDF you cut into circles with your jig or band saw and all you have to do is screw the hardware in place. Of course a little sanding and paint are also recommended.