Amazon offers the Similac Sensitive Infant Formula with Iron 35-oz. 3-Pack for $56.32 with free shipping via the below directions. That's $11 below our mention from last month and the lowest price we've seen for this quantity. (It's the best deal now by $44.) It contains Similac's OptiGRO, which is a blend of DHA, lutein, and vitamin E. To get this deal:

1. View the Similac Sensitive Infant Formula 35-oz. 3-Pack for $93.86
2. clip the 35% off coupon on the product page
3. order via Subscribe & Save for a final price of $56.32

Also available is the Similac Advance Infant Formula with Iron 36-oz. 3-Pack for $65.63 with free shipping via the steps above. That's $4 below last month's mention, a current best by $44, and also the lowest price we've seen. Be sure to cancel Subscribe & Save after your order ships to avoid being billed for subsequent shipments.