Your kid is spending the money you send for groceries on beer. Okay, maybe this isn't the biggest secret in the world, but you might be surprised at how much college students are spending on alcohol. According the the U.S Department of Health, college students spend a total of $5.5 billion per year on booze. By some estimates, that breaks down to $50 per student per month just on beer. Maybe you should send a care package instead.