We did the same thing as psimpson 3-5 and it worked great for our DS. At that point he was drinking 6 oz bottles, so it took us a week longer, but we followed the same idea of adding 1 oz of milk per week. We decided to tackle the switch over to milk first and weaning off the bottle second. He had a morning bottle everyday until his 2nd bday. His milk intake really took a dive when we switched to cups, so giving him that one bottle/day eased my mind to some extent.