J. Arthur Rank, an English executive, decided to do all his worrying on one day each week. He chose Wednesdays. When anything happened that gave him anxiety and annoyed his ulcer, he would write it down and put it in his worry box and forget about it until next Wednesday.
The interesting thing was that on the following Wednesday when he opened his worry box, he found that most of the things that had disturbed him the past six days were already settled. It would have been useless to have worried about them.