On pretty and artistic scrapbook pages, it's important to work in the who, what, where, and when (or at last write the info on the back). Memories for details do fade, years totally blend together, and cute toddlers look very similar.
I have been going through old pages to update scrapbook pages to label the who, what, where, and when, which has required some wierd family calculations -- such as
To calculate Helen's age in a photo taken on a trip with Jane in Jane's only year as a cadette girl scout in seventh garde if Jane started kindergarten at age 5, Jane would be 13 in seventh grade, so if Jane was born in 1987, the trip was 1999, so with Helen born in 1995, then she was four ! It would have been easier to date the photo, but perhaps less interesting.
Many more trips down memory lane are necessary to date other photos by figuring out what year did we have what curtains, which babysitter, what car.