I found this article from Michelle Nahom had some good ideas to keep your photos for a lifetime…
Organizing photos by themes is one good way to start.
Another is by year, then by family member, then theme. This way, you have a ready grouping of special photos to create special memories for any family member’s milestone birthday or anniversary.
I recommend creating a digital library so you’ll have all of the wonderful family memories to share from one generation to the next. And I suggest copying all of the memories to a portable hard drive, with a 2nd as backup. Once you have your library of photos and videos, the stories that can be created in photo books and videos are priceless.