A couple months ago, I had a departing teenager and far more milk
(two-percent, I think) than I would be able to use before it
expired, so I made up a big old batch of medium white sauce and
froze it in one-cup portions. Just now, I heated up a can of corn,
a cup of thawed sauce, salt and pepper, and ohmigosh is it yummy.
Sure beats a can of creamed soup.

(Note to people who haven't frozen cream sauce before -- it freezes
fine. It will look like it's not going to come back together, but it
will, and it will be good.)

Serene