Sierra Trading Post currently has the Italian glass storage jars for really great prices. They are available in sizes from less than a liter to a gallon. These come with the rubber ring and seal hermetically. They are especially good for storing the contents of #10 cans if you don't use it all for your first meal. Because they have a glass body and top, and seal tightly with a rubber gasket, they do not allow oxygen exchange like plastic does.
To find them fast, use the search feature for Bormioli
If you haven't already, sign up for the deal fliers. The most recent deal flyer I received is for 25% off most stuff and free postage.