Or you can try writing short stories. I've done twelve so far based on the amusing, bizarre and sometimes downright frightening things encountered in airline life during the 1960s and 70s. Like some other Prune Posters, I started writing for my grandchildren but then progressed (regressed?) to short stories. Even if they are never published (most unlikely) it is great fun recalling those past events, embroidering them and then researching suitable backgrounds.
And it keeps the little grey cells active!