I've led a few cleaning expeditions in the garage this summer. So far I count these adventures a success because we haven't lost anyone, and through some intense diplomatic negotiation, we've actually managed to agree to let a few treasures find their way to new homes. But I keep coming across those boxes of canning jars. Some summers ago, I actually found time to make jams, jellies and pickles. (I even found a jar or two of forgotten jam in that garage cupboard, but that's another story.) But the big graniteware canner stopped making appearances in the kitchen about the...