For the college part, just take her shopping to prepare a little before getting to school and then again when you bring her to campus. Beforehand you can buy the sheets, pillow cases, and blanket (dorm rooms are usually XL singles but check it) pillows, caddy for toiletries, comfy shoes for walking across campus, slippers, pajamas, and that laptop.
When I arrived at school I realized I needed more space for my folded clothes. My mom took me shopping (to a store like Target) and we bought a cabinet that worked perfectly for my clothes and my roommates TV to sit on top. We went and bought all of my books at the student book store and that’s where a lot of the school clothing is too. School logo comfy clothes that can serve as pajamas and go to the cafeteria and study room are useful.
I would get a paper map if the campus is big. I don’t even know if kids can read maps anymore or if they make maps like that anymore. Easy to read paper maps give you a better idea of the whole campus and surrounding areas. I like to feel oriented wherever I am.
If the school is very old there might be some sort of history book or article about it that she might appreciate. I’m not a big history person, but my school has an interesting history, and I really liked learning about it and seeing old photos.