We’ve always had dual DVD car screens that we bought at Target, but now that our girls received tablets for Christmas. We’ve found that watching movies works well for entertaining kids on long road trips
Bags and stuff you don’t need to access while driving goes in the back. We often have one hotel stop on our main road trip drive, so we pack one overnight bag with all of our stuff for that hotel night so we don’t have to bring in each person’s luggage.