Babies 'R' Us and Toys 'R' Us are offering a bottle exchange program. You can exchange any baby bottle that has ever been carried at their stores for brand new BPA-free bottles of the same brand. In some cases you have to pay the price difference (some companies have raised the price for the BPA-free bottles), but in most cases it's a straight exchange. We exchanged Dr. Brown's bottles, and didn't pay a cent! We even got extras because Dr. Brown's is offering buy 3, get 1 free. They are not advertising this program, but it does work.