For people with GAME accounts go to here to send a friend a free Christmas e-card that includes a £3 off £30 purchase code which you could send to yourself, or to a friend and vice-versa. I know there have been numerous £3 off codes posted lately, but this one has a longer expiry date so I thought it was still worth mentioning.

Minimum Spend £30 Cannot be redeemed against gift-vouchers, gift cards, hardware and software bundles.