When Christina Mott, a mom of three, logged on to a major retail website to buy one of the world’s most popular baby products—a Sophie la Girafe teether—she assumed she was getting the real thing. “I ...

Having a baby isn’t cheap. From strollers, sound machines, and swaddles to burp clothes, bottles, and the seemingly endless restocking of diapers and wipes, there’s always something to buy. As a ...