The good people of 7dayshop are selling this twin pack of USB adaptors for £2.99, delivered. One plugs into the mains, the other into your 12 or 24V car cigarette lighter.
Compatible with any device using a USB cable.
7dayshop previously listed the item at £7.99, and states the UK RRP as £19.99. Discount of £17? Don't mind if I do.
The usual 7dayshop guarantee applies. Try it for 30 days, and if you’re not “101% delighted” – get a full refund.
(Thanks to shadow1 on HUKD)