I was flying not too long ago and noticed that we were about to land in JFK and the flight attendants were still running around trying to secure the cabin. Usually they are all strapped in by the time we are clearing the airport parking lots, but this time they were still running around. I took keen interest in watching when they would sit down, and the last one started walking to her seat as we were over the runway. She probably buckled up a second before we touched down. The captain did make an announcement about sitting down a few minutes earlier.