No one told me you can add multiple cards to Libby

A few months ago I was getting ready for a trip by doing what I normally do: fill my e-reader full of new books. The trip included a very long journey on a train, so I wanted to make sure I had plenty to read (another reason why I prefer e-readers to physical books). I use Libby to borrow books, and my local library normally has everything I've ever searched for, usually with no waiting period…