Happy Retirement: Stay active!
If you want to have a happy retirement you have to stay active, both mentally and physically.
While you're busy working, the idea of sitting around and doing nothing may seem pretty good but it gets old in a hurry.
Staying physically active will help you keep up good health and staying active mentally will keep you sharp and keep you from getting bored.
Find a place to walk, engage with other seniors, get involved in your community, go pester your kids, whatever it takes to keep healthy and happy.