The tech world has made the annual trek to Vegas for CES: the consumer electronics show. Even if by this time we thought we would have Rosie the Robot cleaning our homes, we’re not *quite* at that type of smart home yet. Still, other smart home products are all the rage at CES this year. And in the middle of winter, it might be a good idea to think about the investment. Michael Zhao is an associate editor from the review site Wirecutter. He joins the program from the floor of the show in Vegas.