Last, but not least, the binder gets a spine insert. Here&#039;s mine from last year. The tag informs anyone who finds the binder sitting around somewhere that they should return the delicious physics binder to the person listed. I print these for each of my students, too. And I go around picking them up sometimes when they look like they&#039;ve been forgotten somewhere. Students occasionally &quot;lose&quot; the binders (that is, leave them somewhere on campus and forget where), but I&#039;ve never had one go lost and never get found.