Libraries are great because they let you read books for free, unless you forget to take the books back! The Overdue Book Calendar 2010 is designed to help you remember when to take them back. Problem solved right? Plus how freakin' cute is it? Every month of this 2010 calendar has space for you to write in 13-15 library books you have checked out along with their due dates. This printable calendar is emailed to you as a PDF, which you can then print on standard 8.5x11 paper and then you can print it out as many times as you want. Genius.