I like this idea for my produce in my garage! Laundry bags can be made into storage for potatoes, onions and garlic. It can store a large supply of produce and ventilates well. Lots more ideas at JewelPie.
Instead of stacking your heavy plates on top of each other, consider investing in a few dinner plate cradles to keep them upright and easy to pull out of the cupboard. These are also nice for drying plates next to the sink.