Just spotted this deal on Tesco Direct
I know there has been other deals on similar products, but the Tesco instore Logitech set proved hard to find. This is only £1 more than the Aldi / Lidl deal from a few days ago, and you get a Microsoft set with added media buttons etc.
3 Year Guarantee from Microsoft.
Delivery free to local store, £5 otherwise as usual for Tesco Direct
£25 on Amazon and elsewhere