What joy it brought me to see a photo I'd taken of the mural in my son's room when he was a toddler. When my ds saw it he was just excited as I was; he remembered even though he was only two at the time. My husband - he didn't recognize the mural at all. He even went so far as to ask "Did you really do it?".
Yes, I did. It's based on one of ds's favorite books at the time "I Love Trains". My dh took care of ds for many hours over several weekends while I worked on it. They would come in together to check the progress.
It's long been apparent my ds has an exceptional memory, and my husband - not so much. Either way, what joy to capture things you create with a few snapshots.