Reward performance, punish failure: You can for example, allow your children to watch 15 minutes of television for each completed task ( up to a maximum of one hour per day). If your child does not listen to you despite the warning, remove this television time.
Willpower: Rediscovering the Greatest Human Strength
Positive thinking makes life easier, but the key to success is discipline. Fortunately, one can practice discipline by training one's willpower.