Granola bars, beef jerky, those little "100 Calorie" packs, you know, "less messy" items. Bottled water is a must and I keep a case of it in my car at all times. Sodas, coffee and the ocassional cup of Earl Grey are found in there as well. If I grab a burger on a drive, I will get it plain Jane. Don't get me wrong, I love a good, messy burger, but when driving, the last thing I want is a shirt full of mustard, onions, tomatos, etc. I have eaten a bowl of menudo in a moving car once. Good menudo, but I had a nice dry cleaning bill after that meal. On long road trips, my passengers and I have called the next town ahead and ordered a pizza for pick-up.