Hi, I will be flying in a week with my 16-month old baby. We'll be traveling over an hour to the airport. He's a big guy (wearing 2T clothes, weighing nearly 30lbs) and he will be on my lap during the flights. We also will have a lay over both ways of more than an hour in Charlotte. He's very active.... Any advice from more experienced Mama travelers on how to keep him happy and entertained without having to lug too much stuff? Hubby is staying home to work. Thank you!