Just a note that there are parttime jobs available. After a full time career in a different field, I now work parttime at a nonprofit. Pay is a fraction of what I made but I'm taking my corporate pension, too, and really feel the work is rewarding.
My Husband left a corporate career, too, and is now consulting with a small start up company, working parttime. He's kept up with his contacts at his old employers, so is also going to do a temporary assignment with one of them as well, because they know his expertise. Both of us have flexibility in schedule and do some work from home.
At the advise of a financial planner...and based on reading we've done...we are trying to hold off collecting Social Security until we are 70. Once we both reach full retirement age, one of us will file for SS and suspend, so that the other can collect spousal benefit until we get to age 70, when we will both start taking our own retirement benefits.
One factor in our planning is that we have a child with disabilities, so want to be sure some of our savings remain in a trust for her after we're gone. Without that concern, we would likely be using more of our savings now. We do love to travel, so part of the motivation for working PT is the extra money that allows us for overseas travel.