Take a look at this great post about Holiday specials over at Planning and Foresight. Many bargains on traditional holiday-related food can be used throughout the year. Even if you don't can, hams and turkey can be made into jerky.
Don't overlook canned pumpkin. It's not just a pie ingredient, but a fully-cooked food. Half a cup of the humble canned pumpkin contains 300% of the RDA for vitamin A with 5 grams of fiber and 2 grams of protein. In an emergency situation, a pinch of brown sugar added to a serving or two of canned pumpkin can keep you going in more ways than one!
Many thanks to K for his great post on these aisle blocking specials. Maybe this year we should all stop and rethink the bounty in those otherwise annoying holiday loss-leader displays and how they may add to our preparedness. I sure have.