Even before this current generation of smart home appliances and the Internet of Things wave, homes of the future were already flaunting the rolling robot discs that is the Roomba. But Roombas only take care of the unwanted materials inside the house. For unwanted things outside the house, like weeds in your garden, there's Tertill. Perhaps taking its name from a certain green, slow-moving reptile, Tertill is described as a solar-powered weeding robot. That it looks like a Roomba is no coincidence, as it was created by Joe Jones, the same man behind iRobot's Roomba.