Can technology cure this problem?

In a recent fit of organizing fervor, I decided to put all the kids’ baby and school pictures in chronological order, with the "someday" goal of putting them into an album, all neatly labeled. It should have been an easy job, as they were already sorted out by child. Well, most of them were. Some were buried in the bottom of the plastic bin I store miscellaneous pictures in. But that was not the problem. The problem was that none – not a one – of them were marked on the back with a name or year. I could pretty much figure out who was who, especially during the school years, but it’s not as easy as you would think to figure out which was a child's first grade versus second grade picture and even harder to tell whether a child was 18 months or 2 years. And it didn’t help that Katie and Sarah looked identical when they were babies! A couple of times I went downstairs to ask Jim: okay, which baby is this? I give him lots of credit for being able to figure out the answer more than once! The only thing that saved me from going completely nuts during this project was that the most of the grade school pictures came with a class composite complete with year and grade, and some of the high school pictures were stuffed back into the original folders the orders came in.
So, my question is: why can’t they add a little imprint with the year on each of the photos? It can be somewhere inconspicuous, like the corner. And it can be done tastefully: one of Jimmy’s baby pictures had the studio logo and year in the corner and it was barely noticeable.
In the meantime, all you parents and parent-wannabes: label your pictures now. It'll save frustration later.