Parents, you're doing it wrong. I just got back from the bookstore, with a half aisle dedicated to books on potty training, breastfeeding, discipline, feeding, and the basic care of infants. When did we start needing so much advice on how to do what should come naturally? Where did good moms get their cues in our previous century? Mostly from other parents...and just like today, from truth-revealing ADS! Here are the vintage advertisements your grandparents (and great-grandparents) might have seen, and guess what? The more things change, the more they stay the same.