Long road trip- help!?

Im going to California to go surfing tommorrow- i need something to do in the car or i will literally freak out. lol plz no negative answers, the entertaining things i will have with me are- my phone( i dont have a car charger so it might die) my pebble mp3 player( i lost the charger and its running low on battery) and a boring book ive read like seven times- Thanks!