Amazon offers the Bob's Red Mill Organic Oat Bran Hot Cereal 18-oz. Bag 4-Pack for $8.40. Add it to your cart via Subscribe & Save and it drops to $7.98 with free shipping ($2/bag). That's tied with our expired mention from four days ago and the lowest total price we could find by $9, outside of the price below.
A close price: GNC via eBay offers one bag for $2.29, or four for $9.16, with free shipping. Sales tax is added where applicable.
Be sure to cancel Subscribe & Save once your order ships to avoid being billed for subsequent shipments at whatever price Amazon then charges.