Do you fear the library because you're not sure how much in overdue fines you have on your library card?  Are you not sure how many books you even have checked out or when they are due?  Worry no more!! Library Elf reminds me via email of library books that are due back soon. We borrow A LOT of books with the kids, so this saves me time and money. A bonus feature is that it notifies me when my holds are ready. (I typically request popular titles via the online catalog and save money by borrowing them and not buying!) You do need to have your library card PIN enabled, but that is usually easy if you just go to your library and ask - and sometimes you can even do it online.