Children are balls of energy. Toddlers in particular are physically unable to sit still for six seconds at a time. If we could harness that energy for, say, vacuuming, moms would have a lot more time for, say, showering.
There are plenty of vacuumlike toys out there already, like the little pushers with the balls that go pop-pop-pop. Replace the balls with sucking power and a battery pack, and you've got yourself one helpful little kid.
Up next: You know what would reduce the mortification?