I also add some protein rich snacks like pistachios and Chobani tubed Greek yogurt.
I freeze the yogurt so that they are a yummy treat during the trip. I also keep on hand some chicken nuggets for times when he wants something akin to a real meal.
Road trips for us are easy, he usually sleeps most of the way and I have my playlist filled with music that motivates me. Our snacks along the way keep us both fueled and cut down on costs for traveling. Summer recess is quickly coming to an end but I hope my ideas for road or even plane trip snacks help if you are still planning your summer travel!