Frozen yogurt can get you through the night, and chocolate in general covers up even the most generic delivery system. With some cheese, fresh fruit and a loaf of bread, you're ready to eat right there in the parking lot. Of course you could pick up some paper plates, paper napkins, bottled green tea and cookies and find a scenic overlook. Picnics are always fun, and just getting out of the car and stretching can take your mind off the food itself. Several years of car travel have taught me to always stock a few items.
Power bars are imperative for stemming a breakout of crankiness caused by low blood sugar.
There is a rule on this planet that you will always have a hunger attack when you are furthest from any place that sells food. Don't be afraid to break out of your old ruts. That's what road travel is all about. If you think of the quest for food as part of your vacation, you'll soon find you can actually enjoy a doughnut with that diet cola. Or, as we have, scarf down a New Year's Day dinner of Ralph's brand camembert, stone wheat thins and slices of pear.