Apartment Therapy has awonderful post about alternate Christmas light displays, which includes the bare branch tree above, and several other fun ideas. Christmas lights are probably my very favorite element of good Christmas decoration. They are incredibly varied and fun, and I'd honestly like to have thejm up in my home year round. But then they wouldn't be so festive!
(Meanwhile, I finally found some branches to make a tree. I'll post a picture tomorrow, I hope--it's pretty pathetic. But I like it.)