Amazon offers its Prime members The Little Blue Box of Bright and Early Board Books by Dr. Seuss for $11.66 with free shipping. (Non-Prime members can spend $35 or more to qualify for free shipping; otherwise, shipping adds $3.99.) Walmart has it for the same price with free in-store pickup, but otherwise that's the lowest total price we could find by a buck. It includes board book editions of Hop on Pop; Oh, the Thinks You Can Think!; Ten Apples Up On Top!; and The Shape of Me and Other Stuff.