Yesterday, Sam walked into my study with coin banks in her hands, a smile on her face and a suggestion that they were “bloggable.” I thought so too because a few minutes later, I was taking photos of the red piggy bank with hearts all over its body and the green dinosaur that look like it saw something quite shocking because its eyes are popping out of their sockets, all the while thinking about a coin bank I had as a child, shaped like a house and, on the roof, the message that “A coin a day will build a house someday.”