Many people rent a mini-fridge for their room and keep milk, cereal, and snacks in there. If you can make a quick trip to the grocery store to stock up on this stuff this is probably the cheapest way to go. Do you need to keep baby formula cold? I nursed all of mine, but you may need a fridge if you do bottles. The all star resorts have food courts where you can pick up quick meals. The prices are reasonable, but not as cheap as going to the stores. If you will have a car you could go off-site to a Denny's or something. This would cost less but eat up more or your time. All of the parks have places to buy muffins and stuff for breakfast, not the cheapest option but it is there. Welcome to the DIS!!! Have a great time planning, I know you will enjoy your trip!!! Lacee