If you made the same fatale error as myself this Christmas then you will have bought your children an Xbox and totally forgot to buy the very thing to keep them occupied...Xbox Live! Well, take my advice and head over to Game and get a Twelve Months Subscription for Xbox Live for just £29.99. This is a great price on it's own, plus you are getting FREE £5 Credit to use also.
We now have two Xboxes in our home. Excessive I know, but trust me it was to save my sanity. Guess what, my youngest son moaned that I didn't get him Xbox Live, so he couldn't link up to play with his brother. WHAT? I bought the second one because they couldn't play together without fighting!
Buying the 12 month subscription to Xbox Live is the most cost effective way to do it. The fact you get £5 credit too will save you a headache for about 10 minutes before you hear "Muuuuuuuum, can I get such and such for my Xbox?"!
Game will email you the code for the Xbox Live, so you don't have to wait for it in the post. Trust me it's the best way. They should email you a second code to redeem for your £5 credit also!