Pens, specifically the Pilot GTech and Pentel Hybrid Technica point 3 and point 4 as well as Pigma Micron 01.When I was in college I used to always bring an extra because a classmate might borrow and not return it anymore, hehe. Also notebooks. I horde on books, notebooks and pens and post it. I passed it on to my daughter who loves to collect pretty pencils and small notebooks. My order of Pentel Hybrid just came this afternoon, it was an extra that I want to keep just in case my husband misplace my current one. Again.