You may not have a nostalgic bone in your body, and a Don't Look Back attitude, but I'd like to suggest the habit of at least minimal journaling to young people as the decades rack up.

Vacations flights places you've lived Jobs you've held, doctors, hospitalizations weddings funerals parties concerts. Restaurants. Conventions. Jot it down.

Save yearbooks, student directories, major city yellow pages 2x a decade where you shop and eat. Small monthly quarterly yearly recaps.