Cell Phone Contact for your Baby?

Tia • Baby Boy #1 due Aug. 2015
I was going through my iPhone contacts today, looking at people's pictures next to their name and I thought, "when will I add my little one to my contacts list?" Surely when they're old enough to use a cell phone responsibly but, will you use your cell phone contacts for either: just one more way to be reminded of your little one, or as a convenient way to keep valuable information (medical info, etc.) for your child?