In Retirement, Feed the squirrels!
My great-aunt worked part-time well into her 90's. She lived until 105. My grandmother worked part-time into her 80's, and lived until 95.
What did I learn from both of them?
If you have something to do everyday, it gives you a sense of purpose and keeps you going.
I worked in a large city, and I used to see an elderly man walking around and throwing peanuts out for the squirrels. I would see him everyday over a 28 year period, and as he got older, he continued to do this even when he needed to use a walker. It was an activity that he enjoyed, he got to do it everyday. It gave him a sense of purpose and kept him physically active. I retired and relocated. But, I'm sure he's still out there today, feeding the squirrels.
Find one thing that you love, and do it every day.
Wendy's other site... because Aging Matters!