Judgment and Decision Making

To deal with self-control problems, many people use the equivalent of sunk costs to commit themselves to an activity. (Examples include paying a large annual health club fee rather than paying per visit or buying season tickets for the theater. In both cases, they want to go more often but otherwise would not). Can you suggest other products or services that might benefit from using prepayment as a self-control device? Make sure to specify what self-control problem the product or service is meant to help. Be specific about how you would implement this plan.