I recently ran a event on "after-UPS retirement" plans. UPSers most common answer to "why are you here?" was: "I'm bored."
Here are common choices for "What are you going to do?": (1) Rest & relaxation (how much golf & fishing can YOU do?) (2) Volunteer-Charity work, church, kids sports' coaching. (3) Part-time work somewhere, or (4) Run your own business, on YOUR terms.
I help people (no cost!) who want to explore running their own business, without having to "invent" it (usually, franchises). I have UPS retiree clients who are looking at absentee, semi-absentee, and even owner-operated business models to own and run (for income AND equity-building) after retirement. Interestingly, I have a number of folks who are going into franchise businesses with their kids; many of whom prefer this option to battling the job market. Business services, home-consumer services, work-from-home, brick-n-mortar, products, retail, light manufacturing, and in dozens of industries: There's hundreds of great franchise options out there, depending on how little, or how much, time, investment, and effort people want to commit.