I'd rather overpack for college as opposed to underpacking. College definitely showed me what clothes I really do wear and what I could give to Goodwill. I have plenty with me at school. I mean, I'm here 3/4 of the year, why should I only bring a week and a half of clothes?
Formal outfits are good to have. Girls have a lot more clothing options than guys, it seems, but I wear my suit and my sweaters and khakis way more than I could have imagined. Job interviews, meeting big alumni of the school, rituals, and special dinners, just to name a few instances where some nice clothes have been great to have.
I'm pretty big on shoes (lol), but I only bring the ones that I know I can wear with more than one outfit.
I think I brought a great amount of clothes my Freshman year but way too many sophomore year. You're probably going to acquire a good amount of school and organization shirts, something I didn't account for my second year when repacking.
ETA: Oh yeah, and when it comes to Winter clothes that I CAN'T wear in Texas, I just put them in a box when they're out of season so they're out of the way.