Amazon has a great deal on the Honeywell Home T5 Plus Wi-Fi smart thermostat, which is a great option for older homes. Grab it now for just $81.95 with free shipping. I'm PCMag's managing editor for ...

When Nest, a startup co-founded by former iPod honcho Tony Fadell, announced its classy, web-enabled, touch-screen thermostat back in the fall of 2011, you just knew that Honeywell–long the biggest ...