Monday: Monday blues (or hangovers) are easy to solve with navy super-skinny sweatpants (people can't tell they're sweats from far away). And pair them with strictly non-sweat items, like a ruffly blouse and cardigan. If you wear flip-flops, choose nice ones.
Tuesday: Going to a big game? Get into the college spirit with a collegiate cardigan over a striped button down (for visual interest). Wear them with cutoff shorts (it gets hot inside an arena or outside in the early season). Wear comfy shoes, you'll be getting up and down a lot.
Wednesday: On an unseasonably warm day, give a nod to the past summer with a pretty sundress and cute sandals. Wear a cardigan to make it more season-appropriate.
Thursday: A normal fall day. You can still wear summery tops into fall with a cozy sweater-hoodie and jeggings (I swear by them). Converse are good class shoes.
Friday: For a casual café meet-up with one of the many guys dying to date you on the regular, a short floral skirt with a low-cut tank is flirty but not suggestive when worn with a long cardigan. Letting a little lace from your bra peek out is sexy, but if that's too much for you you can show some extra skin via cute sandals.
Saturday: Forgoing an all-night party for a night in with your roommates once in awhile is good for you. Get some TLC with a comfy shirt and sleep shorts. And when you have an impromptu run to the on-campus 24-hour food mart, you can pull on some high socks to keep you warm.
Sunday: After last night's Oreos binge...going to the gym an extra day this week might not be the worst idea.