My GF refused to open anything before Xmas day, but I've been bugging her to open one before. I even broke out my EF gift early, because I couldn't wait til Xmas to try it out.
What about you?
Because we always have WAY too much to do on Christmas anyways, we always open most of ours on Christmas Eve. It's especially more convenient because we don't live together and can't do it that morning!
My wedding anniversary is just before Christmas, so hubby and I open anniversary/Christmas presents early. (We give each other one gift that covers both, and that was how I discovered Eden this year!) The rest of the extended family makes us wait till Christmas to open gifts from them.