For those of us stocking up on the cheap, keep your eye on Rancho Liborio http://www.liborio.com/ which is a Latin oriented supermarket in the area. They often have 5# bags of white rice for $2 and bulk pinto beans for $0.50 a pound. (The pinto beans are that price right now)

Buy your laundry soap in the big plastic bucket and when it's empty wash it out real good. Pack it with bulk food, use a little block of dry ice to displace the oxygen, and seal it with the lid for long term storage.

Check out http://www.fcs.uga.edu/pubs/current/FDNS-E-34-1.html for a short list of basic storage tips.