A note from the editor: Jelly Deals is a deals site launched by our parent company, Gamer Network, with a mission to find the best bargains out there. Look out for the Jelly Deals roundup of reduced-price games and kit every Saturday on Eurogamer.
Update 22/01/2018: Sadly, that £12.49 deal seems to have been removed by Microsoft before its time. You can, however, get yourself six months of Xbox Live Gold for £14.99 over at Amazon UK currently. For more up to date deals on Xbox Live prices, feel free to bookmark our guide to the best Xbox One deals right now.
Original Story: If you're an Xbox owner and you're one of these folks that likes to play multiplayer games online with other humans for some reason - or you just happen to like getting a stack of free games on a monthly basis - you're going to want an Xbox Live Gold subscription.
If you don't have one of those already or you just fancy extending it a little more, you can take advantage of Microsoft's current offer of a six-month Xbox Live Gold subscription for half price.
That brings the cost of a half-year subscription down from £24.99 to £12.49 for the next 21 days, according to Microsoft's own site. This discount only seems to apply to the six-month membership for the time being, as the 12-month and 3-month options are still set at their regular full prices.
If you're an existing subscriber and want to grab this one, you don't have to worry about your existing membership being cut short, adding this will just extend your membership. You can find this offer over at Microsoft's official store.
If you fancy a little something extra, feel free to check out the guide to the best Xbox One accessories over at Jelly Deals, too.