Car Seat Misconceptions -- I learned something reading this article, in Front vs. Back babies should be left in the rear facing position as long as their seat allows or their head is within 1 inch of the top of the seat, whichever comes first. I am guessing the DS1 could still be rear facing, but I'm not going to change him back. We just bought a convertible car seat for DS2 (because his infant seat is getting passed to a new cousin that is due next month). Perhaps we will keep DS2 rear facing past his first birthday.