Feeling cold, hot or insecure? There are many solutions provided by the Internet of Things, from lights, cameras, locks, thermostats and much more. You need to choose carefully though as not all work as claimed, and some have rather glaring security problems. But, if you're up for the challenge, then you can set up a fairly cohesive and secure system in your home. One of the top purveyors of some of these products is Nest, part of Google/Alphabet.