I don't know why I didn't think of this. It's Brilliant!

A rubber band. Brilliant!

Horatio Alger was a name I'd heard before. I went looking to see who he was. 

This whole book thing takes on another dimension now that  I'm thinking about rubber bands. 

I have a lot of books which are hanging together by a thread. Which? That?* 

A rubber band would do them good!

* Dang. One refers and the other doesn't but I can't remember which is which.