Bday and college gift

Hi everyone! My bf of 4 years birthday is a couple days after we finish college. We started dating just before we started college and went to different colleges so it’s a pretty special time of getting through it together as well as his birthday. Not looking for anything to crazy or expensive, but just means something or is helpful with starting life after college. After so many birthdays, anniversaries and Christmases, i am lost on non expensive ideas 💔