Amazon has the 27.6oz Golden Grahams Breakfast Cereal (Giant Size) for $4.99 - 20% off coupon (check "Save an extra" box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel anytime) = $3.74 with free shipping on $25+ or with Prime. Under 14 cents per ounce. Also on sale:

• 25.8oz Cocoa Puffs (Giant Size) for $3.74
• 23.4oz Trix Fruity Cereal (Giant Size) for $3.74