At first I thought it was a joke, JustaPicker, but that's a great idea. When I get several sets together I'll send them off. I change strings 3 or 4 times a year. I can tell other people too.

I do get this mental vision of someone getting a tangled mess of strings in the mail and having to toss the entire thing. Used strings tend to be a little wild.

The only use I had ever found for them was hanging a phone book on the wall above one of the phones by the low E knotted and passed about half way into the book.