Oh wow, I agree - this is a great concept! I'd love to do one for each of my sisters and give them as Christmas presents next year. It would be neat to try to figure out how to spotlight what's important for each sister.
Here's a couple more ideas:
My favorite childhood toys / games.
My pregnancy (or pregnancies)
"I made it" page to show off something made by me.. (Like a dollhouse or quilt or any other project that was a big effort)
My bucket list...
This project has so many options! Thanks for starting the post!