Like Kiera—and, I'm sure, many of the readers of her article—I was a bit shocked when I calculated how much I spend on food. I like to think I'm thrifty in my food spending habits—I cook a lot and usually eat out only on the weekends—but I don't usually add up my food costs and rarely make serious estimates for food spending when I make a budget, instead assuming that I'll manage to make do with whatever's left after I cut a check for rent, buy a bus pass, and pay my utility bills.