I have a 3 yr old boy and a 2yr old girl, when my son was 1yr old I bought an inexpensive big calender and placed it on my computer desk. Every time I took a picture I go to the calender and write what the picture is or if something funny happened. As each month end I place it in-front of my picture in my storage box. So when I do my LO i pull out the calender month and the pictures, so when i don't remember what the picture is or what happened all i have to do is look at my calendar for reference.