While it's hard to imagine Michelle Obama decorating a dorm or cramming for final exams, turns out she was once a regular Princeton University student studying sociology and African American studies. First Ladies, they're just like us! Obama recently took a trip down memory lane via Instagram, sharing a snap of herself between classes. Clad in a jean jacket with school bag slung over her shoulder, she looks like modern day #OutfitInspo. But in the caption, she got candid. "michelleobama: This is me at Princeton in the early 1980s. I know that being a first-generation college student can be scary,...