Fr. Longenecker has a post linking to an article in the Daily Telegraph about how the Diocese of Leeds (England) is attempting to put a stop to the ad-libbing that goes on at the start of the Mass. No more "Good morning" or "Hey, whazzup?" or "Did you see that game last night?", etc.
Sounds like a good start to me. We should be doing some of that ourselves.
Go to Fr.'s blog:
http://gkupsidedown.blogspot.com/2009/04/groovy-good-mornings.html