A possible price mistake, Walmart offers the Similac Advance Infant Formula On-the-Go Powder Sticks 16-Count Box 4-Pack for $11.54. (Target has it for the same price.) Opt for in-store pickup to avoid the $5.97 shipping fee. That's the lowest price we could find for this quantity by $35. This formula is fortified to purportedly support brain, eye, and physical development.

Update: It's now sold out at Walmart; however, Target still offers it for $11.59 with free shipping.