As a mom to a two small children, I've almost forgotten what it's like to travel to Walt Disney World without littles in tow! My biggest tip for families with young children is to stay at a resort with at least one other alternative mode of transportation (boat, monorail, or skyliner) in addition to bus transportation. These alternative modes allow you to keep your kids in their stroller (instead of folding up and holding the stroller and kids) which is a game changer at the end of the night when everyone is tired! Also, take advantage of the Baby Care Centers. These are a nice quiet place to take a break in the air conditioning, nurse, have a bottle, change diapers, take a nap...anything your baby may need to do! Lastly... Snacks! Bring your own snacks into the parks. A fed kid is a happy kid!