Children's clothes

I come from a large family, five sisters and three brothers. My sisters and I were looking through the family photo album one day. Picture after picture, we were all dressed in matching clothes.
I asked my mother why she dressed us all alike, right down to the baby.

She explained, "When we had just four children, I dressed you alike so we wouldn't lose any of you. Then," she added, looking at the pictures in the album, "When the other four came along, I started dressing you alike so we won't pick up any that don't belong to us."