Good deals on McCann's Oatmeals at Amazon with an additional 10% off with promo code OATSO3IO, valid through 3/31.  Here is a screenshot for reference.  Shipping is free on orders over $25.  Save an additional 15% with Subscribe & Save plus free shipping as shown in this screenshot.  The subscription can be canceled at any time.  Prices listed below reflect only the 10% discount before the additional Subscribe & Save savings.

• McCANN'S Quick & Easy Steel Cut Canister, 24 Ounce Tins (6-Pack) for $28.49 shipped
• McCANN'S Instant Irish Oatmeal, Variety Pack, 10-Count Boxes (6-Pack) for $19.36
• McCANN'S Quick Cooking Irish Oatmeal, 16-Ounce Boxes (6-Pack) for $17.95
• McCANN'S Steel Cut Irish Oatmeal, Quick & Easy, 16-Ounce Boxes (6-Pack) for $16.53