Whole Foods has great sales on lots of organic products throughout the store. Use a coupon stack, like this one on Udi’s Gluten Free Granola, and save big. Learn more about coupon stacking. Buy one bag of granola, on sale for $4.49, and present a manufacturer coupon at checkout to save $1.00. Scan your receipt to Ibotta after purchasing to save another $1.00, making a bag only $2.49!