I have one notebook for dailies/monthlies and another for collections. I like to be able to keep my collections notebook a bit messy and cross things out when I need to. It’s also good for random lists.
course info (professor, times, location, credit hours, etc.)
course requirements (pre-reqs to degree)
grade tracker/paper tracker
habit tracker (cleaning, laundry, workout, no spending, meds, etc.)
time log (how much time you spend studying, cleaning, working out, at clubs/volunteering, etc.)
calendar for appointments
practice log (music, sports, art, etc.)
water intake (or other habits not in monthly)
inventory of items you collect (books, records, crystals, magnets, etc.)
places to go/places you have been
breakfast/lunch/dinner/snack ideas
good food places in your city
packing lists (weekend, plane, etc.)
websites you have accounts on (helpful if switching emails later on)
films, tv shows, musicals to watch/have watched
student discounts (places where you show your ID and get x% off)