According to the top coves at Engadget, the 802.11n wireless adapter is on sale now in an unnamed Asda store. The tax? A far from pocket-money price of £49.

But if you don’t fancy paying top whack, you might be interested in a cheaper option that was brought to our by one of our attention by tech-savvy reader, Zac Marsden. The way Zac tells it, one canny workaround is simply to use a powerline Ethernet adaptor, which is “fast enough to stream HD” and features “no wireless drop out”.

Alas, I don’t own a 360, so am unable to put it to the test. But if any of our other readers have tried it, or have developed any other ways of saving the best part of 50 notes and not shelling out for the 802.11n, let us know in the comments section below.