A Birth Certificate shows that we were born.
A Death Certificate shows that we died.
Pictures show that we lived!
You probably have several albums filled with photographs. Are they labeled?
If not, a hundred years from now some descendents will be looking at your photos, scratching their heads. Who's this? I don't know. Someone's mother, father, brother, sister, son, daughter, grandmother, grandfather... I wish we knew.
Your photographs are not only mementos of good times you've had. They're historical documents. Set aside some time this weekend to write the names and relationships of the people pictured down on the back of each photograph. I can guarantee your great-great-granddaughter will be grateful for it and thrilled to have a certain picture of you. Believe me--I've been there.