Source Ah Peanut Butter! A tasty snack and critical component for cheap breakfasts and cheap sandwiches. Which is why my mother tends to pack a jar of it along with other cheap foodstuffs when we go on road trips. Always a great way to save money. However, she and my sister found out the hard way that while its a great idea for road trips, its a horrible idea of air travel. In my last year of college, we as a family decided to visit my Dad's best friend. He lived in Maui, Hawaii and so my mother