A box for each kid K-12 ... I had a professional organizer at my house (what a treat!) and she suggested this system for pictures and papers, etc. 1st year, 1-2, 2-3, 3-4, pre-K, K, 1st grade - 12th. So simple, but so brillant.
Baby shadow box. I used an outfit he wore in the NICU, along with a cap, his footprints, stats, and bracelet. I plan to do another with his hospital card, newborn pic (one in the box is from his 'newborn' shoot but he was actually 3weeks old.