There are many ways to store cutting boards - from stacking them in a cupboard to sticking them in a drawer. However, I saw this idea in a magazine and thought it was so clever because it brought together two items from completely different areas in the home.
Store your cutting boards in a file sorter like this one from Rubbermaid. Place the taller cutting boards in the back, the smaller ones in front. It fits right on your counter which makes using the boards so much easier.