My library has an app that allows access to audio and e-books. I love it. But for one reason or another, I never switched my account from my old phone to my new one. I did so this weekend.
And lost all the books I had on hold! Some I had been waiting months for. Most inconvenient.
But perhaps more inconvenient, some of the new books I put on hold immediately came in and now I have to find time to read them!