'Hey Google, dim the lights': how smart home devices can save money

From energy-saving bulbs to leak detectors, smart tech offers many benefits at the touch of a buttonAlmost everything in your home, from lights and thermostats to door locks and security cameras, can now be connected to the internet. With a few taps on an app or a voice command you can turn down your heating, let visitors into your home or check for leaks.But while many of these gadgets appear to be simply a way to impress visitors (“Hey Google, dim the lights and play some romantic music&