If you mismanage your meals and snacks or your schedule runs late, you could find yourself ravenous with nothing to do about it. Well, maybe the only thing to do about it is order the $17 French fries, which are the cheapest thing on the menu, at what was meant to be a quick (cheap) drink with a friend. So often your options are to spend more on a snack at a restaurant or bar than you typically spend all day to eat, or go hungry. And when you’re hungry you become, at best, irritable and unfocused and at worst…at risk of passing out. Keep protein bars or nuts in your bag at all times.