Any ideas or advice to keep an older kid occupied and happy on a plane and while in the airport? We are traveling to my in-laws for thanksgiving. My husband and I, our 3 month old, and my 10 year old step son. We'll have one 2 hour flight, a layover, and another 2 hour flight. Its going to be pretty much an all day adventure.

I already have a notepad, pens and markers. Definitely bringing snacks. Might pick up some mad libs. Is there anything else I'm missing?