Office 365 (5 user) at lowest price I've ever seen. OK, some don't like it because it is a subscription service, but for those who do, you are unlikely to ever get a 12-month renewal code at anywhere near £39. Usually sell from between £50-£55 on eBay. In Tesco, Ayr, but label showing £79 reduced to £39 (printed label on the shelf edge) was not the 'store specific' reduction (yellow) label often seen in Tesco stuck onto the reduced item.
ADDED: Now reported available at this price in Bedford and Horsham, so not just a 'one store wonder'. Also, Clifton Moor, York
For the sake of clarity. This deal is for the Office 365 (5 user) where the card with the license number comes in the small orange and white cardboard box. This has now been replaced with a thinner folded over piece of card, with the license card inside, and that stock code sells at £79. It's the one in the box that sells for £39. Those are the ones to look out for.