Amazon offers the Campbell's 15.25-oz. Tomato Soup 8-Pack for $9.93. Check out via Subscribe & Save to drop it to $9.43. With free shipping, that's about $4 under what you'd pay at a local store. Be sure to cancel your subscription after receiving your item to avoid being billed for subsequent shipments.
Also available with orders of $25 or more is the Campbell's 15.25-oz. Chunky Chili 8-Pack in Beef & Bean Roadhouse for $9.65. Prime members bag free shipping. That's $1.21 per tin and also about $4 under what you'd pay at a local store. Note that it ships in 2 to 5 weeks.