I guess about 5 or so months ago, right after I moved to Dubai, I signed up and started paying for Audible. It is a audio book site that offers, for 15 dollars a month, a ton of titles and allows you to download 3 a month. I just signed up to test it and downloaded one book.
I liked it, so I didn't cancel it, but I somehow forgot about it.
I was checking my bank account today and noticed a charge to Audible, which refreshed my memory that I had in fact signed up for it. So I am downloading the balance of the books from the last couple of months since the carry over from month to month.
All in all, I should have a lot of listening materials for the office and for long flights, particularly the flights to Paris and Buenos Aires next month.