A key part of your retirement plan is a discussion of the benefits of working, regardless of age. Retirement is no longer an event...it's a segue into a new approach to life as you know it.
One definition of “work” is that it consists of actions that bring value to others and meaning to you. While you may feel that you’ve had enough work, it’s probably the underlying issues (i.e. meetings, corporate politics, commuting) that have left you drained and exhausted.
Think about this: many people who go back to work after retirement are motivated by more than money––they are also motivated by the health, psychological, and friendship payoffs.