(Author) I make my meals when I work from home, but I didn't often have time to make meals and get to campus at time, so I'd buy a sandwich or salad at the deli instead. That's between $10-$15 depending on which cafe my class is nearest. Also being pregnant, my appetite and nausea are unpredictable, so I might buy another snack during the day.

Certainly with better planning, I could have reduced those costs slightly.