Another one for the "why didn't I think of that" files: Turn a magazine holder on its side and stick two pins in it for space-saving organisation in the pantry.
Cans, as you know, are awkward to store. They take too much space and, stacked, are just a mess. A magazine holder is apparently the perfect-sized organiser when tilted on its back. With two flattened and spray-painted bobby pins as stoppers at the ends, cans are neatly contained on your shelves.