Each year when your child's class picture is taken, make a copy and write the names of each classmate over their respective photos. This way, in years to come when your child looks back at the pictures, they won't be at a loss for the names of their childhood friends.
I wish I had found this tip years ago. I have pictures from my children's school years that nobody know who most of these people were (including the teacher).
Source: Family Circle, September 2004
By leanne chaisson from Williams Lake, BC
This page contains the following solutions.
Write your child's age, weight, and height on the back of professional photos (school pics, baby pics from a studio, etc) or on good quality home pictures. If, heaven forbid, you're child were to come up missing, you'll have important identifying information in one place.
I store my daughter's 8 x 10 inch school portraits in the same frame, with the latest one on top. Every year, when we put the new photo in, we lay out all the old ones and compare hairstyles, additions of braces, or glasses.