Nancy and I have been doing this for years. At any given time we probably have enough staples to go a year or close to it. We buy flour and sugar in 50 and 25lb bags, white and Basmati rice in 20lb bags. We go through these in reasonable amounts of time. We use the white rice to make dog food. We eat the Basmati, and 20lbs lasts us about 6 months. I have also started piling up bags of dry beans of various sorts and stocking up on dry pasta when it's on a 10 for $10 sale. Eating well on the cheap isn't hard to do if you want to do it. I'm simmering stock from left over holiday ham bones right now for bean soup tomorrow. 4lbs of pimento beans, 3lbs of cubed ham, and a gallon of stock makes a solid three gallons of kick ass soup for about $20. Spent over half of that on the ham.