On Mon, 18 Dec 2006 13:28:11 GMT, "Ron Magen"
wrote:

Another trick I typically use in conjunction is . . . storing the partially
filled cans upside down. That way if any 'skin' does form, it will be on the
bottom of the contents and the usable portion can be easily decanted.

That's a good one- I never thought of it, but it sure makes sense.