Amazon has the 10.75oz Happy Belly Tomato Condensed Soup for $0.88 with free shipping on $25+ or with Prime (extra 5% off for 5+ S&S orders). Excellent filler item to reach the 15% group discount on S&S. Other soups under $1:

• 10.5oz Chicken Noodle Soup for $0.86 after S&S
• 10.5oz Cream of Chicken Soup for $0.93