There's an old joke about how trying to change ... twisty toddler. Well, it looks like keeping upwithbigbabykay has found the perfect way to keep her little one's hands down during a diaper ...

That’s the gist of the new Lumi by Pampers system ... the exterior of the diaper. When the baby uses the diaper, the sensor alerts the Lumi app so parents can go and change it.