Most people in my neighbor hood decorate with Christmas lights. Most of them are tasteful but some are downright overdone.
What I do at my house is candles in in the window. I actually have been keeping them in a closet so they can be put up early. The rest of the ornaments are kept in the attic and we somehow, never get the decorations down till the week of Christmas. We always manage to get it done by Christmas Eve.
Chuck said that the tradition at his house was that Santa decorated the tree and outside of the house in addition to the delivery of the booty.
I will tell a story about an incident from my mothers childhood Christmas Tree. I suppose it was circa 1926 because that is the year they arrived from Germany. My mutti said that her parents put up a tree and the German tradition was to put candles on the tree and then light them. Well, somehow the caught on fire and my grandfather threw the tree outside and avoided a catastrophe. She said that particular tradition was never done again. I suppose it originated before Christmas lights, and I suppose now candles use is gone forever.