My family has a new tradition to wrap up the holiday season. After we've packed up the ornaments and taken down the lights, we send our Christmas tree for a flight out the window to be put out on the curb for recycling. We started this tradition last year when we lived in a third-floor apartment and have continued the practice in our new house — though sadly our living area is one story lower at the new place.
You may think this is a silly tradition, but it makes cleaning up the pine needles a lot easier and it's fun for the kids (and the adults).
Here's last year's video. (Apologies for the vertical video. We've since had conversations with the kids about the dangers of Vertical Video Syndrome).