I retired last year to DW's joy and delight. She still chooses to teach part time August-May (classes at a private school and 1-2 university classes) because she enjoys sharing her knowledge and working with students. I have not factored her income into any retirement plans, so she can choose to stop any time and not feel "guilty" about losing the income stream.
We have managed our time very well so far. (at least according to her
). Long trips we schedule around her fall/spring breaks and summer. Long weekends we can do anything, since she always has Fridays and about half of Mondays during the school year.
We try to do something together at least once a day... it might be as simple as both of us on our computers/tablets/books in the same room, or a board/card game, watching an episode of a show (neither of us are big TV watchers). Often times it is something active, like a walk, hike gym workout, or sport (primary golf and bowling). And we definitely still do date nights - e.g. this week we went to a pro ballgame in a nearby city and stayed over the night in a hotel, this weekend "dressing up" to go to a jazz concert at a vineyard.
We have a Venn diagram of friends, so we try to have a good balance since we each have interests that the other does not, but have friends with that interest. I'd say on average we are both with our friends a couple of times a week, and together with joint friends at least once a week (usually for those activities I mentioned above).
So far, so good. Our stance is we love being around each other, are both relatively healthy and physically active, but do not know how long the physical aspect that will last. So being active, especially together, we want to try for as long as possible.