I go on Pintrest and look for travel ideas! We're going on a cruise soon and have to from from NC to FL with our 1 yo who hates her carseat for any extended period of time 🥲 We took a 2 hour trip to the beach and had to stop half way through because she needed a break. My best advice is to plan periodic breaks outside the car. I know it'll make the trip longer but it will save your sanity in the long run 😬
The DaVinci Code is a real page-turner. We were told to buy suction fidget spinners for the windows.