Walmart offers the Augason Farms 1-Year 1-Person Emergency Food Supply for $690.51. Opt for in-store pickup to avoid the $199.97 shipping charge. That's $50 under our mention from last week and the lowest price we've seen. (It's a best deal now by $309.) It has a shelf life of up to 30 years and provides 4,899 total servings and approximately 1,088 calories per day.