If you are one of the regular travelers and enjoy reading, then you probably know about this already. The Read & Returnprogram offered by the Paradies Shops is really cool. It offers travelers a great way to save money. You can buy a book, read it, and return it within 6 months to one of their many stores and still receive 50% off. This program has apparently been around since 2003, but I haven't tried it as yet.
I mean a library definitely beats this model in terms of price, but I think it may just cater to a separate audience, the ones that probably don't have the time to go to a library.