Q. What do I do with a book or score when I'm done using it?
Just leave it on a table, and we'll pick it up later. It's not that we don't trust you to put it back in the right place, but we like to count the stuff people pull off the shelf so that we'll know which ones have been used (and by extension, which ones we should be sure we keep). Think of it as voting for your favorite books and scores.