My DD was very organised and had boxes for different things on her shelf, rather than one big box.
One box for medical stuff-first aid, plasters, paracetamol, tweezers, Night nurse, throat sweets, tampons, pills etc
One box for stationery-blue tac, envelopes, post it notes, pens, sellotape etc
A smaller box for miscellaneous-safety pins, sewing kit, tape measure, screwdriver, batteries, chargers.
A folder for important things-passport, student loans info.
A box with a handle to take into the shared bathroom-wash stuff/toiletries.
Plus a big box for spare pasta/sauce/toilet rolls etc that lives under the bed.
It worked really well last year!