So apparently the UK papers, The Guardian and the Observer, have teamed up with Audible to give away a free audio book each day this week. Saturday's book is The Girl with the Dragon Tattoo by Stieg Larsson, and since I just downloaded my copy it's still not to late for you to do the same.
Although it's not made clear, this offer does appear to be available to UK residents only (although it says it for all readers of The Guardian, so that doesn't seem very fair) but just a bit of editing to your Audible account setting should make this possible. This offer is even available to those who already have audible accounts.
To get your free audio version of The Girl with the Dragon Tattoo visit here