I'm thinking about photographing one of my hands each year

I met a photographer at a conference recently and we were talking about how rare it is to see images of people aging over time.  We talked about the buzz over the movie Boyhood and she mentioned a friend who had been taking self-portraits every year for over thirty years.  We both wished *we* had thought of that.  I'm not much for the self-portrait but I thought it might be useful to take one picture each year of my left hand (I'm righthanded).  I'm not saying that this photograph should be the "one" for this year, but you have to start somewhere, right?