Family hugs were a tradition in my family growing up. I don't remember them starting, but I sure remember being forced into them as a teenager. Most nights we'd have our family prayer, and then follow it with a family hug (which, if you're still wondering is just what it sounds like, the whole family hugs at once).
I haven't had a family hug in probably 10 years, but something brought it to my memory about a week ago and we've been doing it ever since. At this point, the kids love it. We had 5 family hug encores tonight. They even kiss each other during it!