One of the things I've been looking into is storing food up for a few months supply. You never know what might happen that you might depend on the stored food to feed your family. Whether something major happens in the country or if we dont' receive a paycheck suddenly or some other major expense comes up. I'm working on stocking some flour, sugar, and canned goods.
I found this interesting calculator to determine how much you would need for a year for your family. Its definitely interesting to look at. I have some friends that have a few months supply and others that have almost a year.