Free flour*
*After Ibotta rebate. You can buy flour for $1.32 at Walmart. In Ibotta, activate the "any flour" offer. Buy a pack of Great Value All Purpose Enriched Flour (2 pounds). Price $1.32. Upload the receipt to Ibotta and get a $2.00 rebate. Final price - 68 cents profit. Or buy any other flour at any other store at any price, and get $2.