BREAKFAST CEREAL
Cereal is something that many people, especially those with kids, buy often and in large, bulky boxes. The long shelf life makes online shopping an option. A 28-ounce box of Post Honey Bunches of Oats sells on Amazon for $4.85 — which is somewhat less than you’ll find at a number of other retailers, making this a product to buy online for convenience, rather than any big savings. Shipping is free on orders of $40 or more with an Amazon Prime Pantry membership.