I really liked this from Charity Focus:
How long can you go without complaining? A few months ago, the pastor of a Kansas City church told people in his congregation he wanted them to test their limits. "The one thing we can agree on," said Rev. Will Bowen, "is there's too much complaining." And so he asked the group to give up complaining, criticizing, gossiping or using sarcasm for 21 days. People who joined in were issued purple bracelets as a reminder of their pledge. If they caught themselves complaining, they were supposed to take off the bracelet, switch it to the opposite wrist and start counting the days from scratch. Rev. Bowen said it took him three and a half months to put together 21 complaint-free days. Now, about a half a million people around the world have requested free wristbands to rise to the challenge.
