Stomach medicine and cold medicine, because when you go to college, you will find that if there is no class in the morning, almost no one will eat breakfast, so basically everyone has stomach trouble. Cold medicine is a standing medicine and may be used frequently. Campus pays attention to collective life. Preparing these for roommates at the critical time will enhance the atmosphere of the dormitory and create a warm living environment and intimate friends for your four years in college. By the way, prepare some band-AIDS, which girls always use when they wear shoes and rub their feet.