Amazon offers Prime members the Infantino Flip Advanced 4-in-1 Convertible Carrier in Light Grey, model no. 200-183, for $17.88 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs around $7.) That's $2 under our January mention and the lowest total price we've seen. (It's the best deal now by $12.) It supports infants from eight to 32 lbs. and features four carrying positions.