Hi! Doesn't a year fly by fast? At one year, we were not totally off bottles and I know many people who were not either. I was down to just a morning and night bottle though. It never worked for me to put formula in a sippy. Instead, once my DD turned one I started putting cow's milk in her sippy with breakfast, lunch, and supper and snacks. Once she got the hang of that I cut out the AM and PM bottles. At this age they need 16-18 ounces of formula or milk. I know my DD doesn't get 16 ounces a day, but she gets dairy in the form of cheese and cottage cheese, etc. HTH!