We've talked about Audible's Black Friday deal before, but since that was last year's sale that some dope left up, there's actually something interesting for us to talk about again - including 50% off an Audible subscription for four months.
In other words, provided you sign up before 13th December, you can get Audible for £4 a month for the following four months. That grants you four Audible credits in the process (one a month) which can be exchanged for four audiobooks. Potentially more, if you use the old (rather unethical) return-after-you've-read trick.
As is the way with these things the offer is only available to people who haven't signed up to Audible before - including people who used their free trial and cancelled right away. It also auto-renews after the four months are up, and charges you the usual £8 a month.
Audible will also have a Black Friday sale kicking off on Black Friday itself (29th November) and will run until 2nd December. That offers over 300 books for just £3.50 each, and if you've seen the price of audiobooks in the past you'll know that this price is an absolute bargain. Assuming you find something you want to listen to.