What was the process you went through in order to have your 360 sent/repaired/returned?

Nothing has happened to mine YET. But, as nukefault jokingly pointed out, it is inevitable (maybe). So I was wondering... how did you guys go about getting the ball rolling for your warranty?

I know we are all covered by a three year warranty from what I'm assuming is purchase date (you didn't have to sign up for it or anything, right?)

The reason why I'm asking if because I received this xbox360 as a gift, and I don't have a receipt for it. My girlfriend bought it, and I told her she should probably keep that receipt (if she even still has it). She bought it from Target.

So should this ever happen to me, how do I go about resolving the issue?