Hi - we've got a 5-6 hour car journey to our UK holiday later this month, with our 18m old. Any bright ideas for car entertainment for him? Hoping he'll nap for a couple of hours, but that still leaves a fair bit if time to fill. He loves things to fiddle with right now (loves his PopIt) and buttons that do things, but I could really do with some specific ideas! Also ideas to stop toys/drink bottles/snacks being deposited down between his seat and the door. He's rear facing.
Thanks.