I'm looking for advice on how to transition my 15 month old son from a bottle to a sippy cup at daycare. He breastfeeds at home, but I still send bottles to daycare. He is drinking less milk from bottles, but still drinks at least 4-6 oz at daycare. Switching to a sippy cup would make washing dishes much easier, since we use the Dr. Browns and there are so many parts to wash. But my concern is, if we switch to a sippy cup he will drink even less milk or none at all. How can I transition him to a sippy cup while still making sure he drinks some milk? Thanks for the help!