At about 12 months, we went from the bottle to the Nuby sippy cups which are very similar to a bottle then we just gave sippy cups. Also, right before we began the switch over, our Dr. reccommended that we do a bottle with only water in it before bedtime (making sure he had enough milk/formula during the day). So he really didnt want that too much at first and he wasnt looking for a bottle at bedtime. I also got a few different sippy cups (handles, pictures and different spouts) so he always had soemthing different to drink from. He seemed to like that. I will agree though, it was much harder for me to stop giving him a bottle than it was for him. They grow up so quick!