As of Jan. 2, get the Google Nest Learning Thermostat (4th Gen) for $229.99 at Amazon, down from its usual price of $279.99.

Mike De Socio is a CNET contributor who writes about energy, personal finance, electric vehicles and climate change. He's also the author of the nonfiction book, "Morally Straight: How the Fight for ...

There’s a lot of junk on the market — these are the best smart frames that are worth your money. Meditation apps can help newbies start a new practice and help others add variety to theirs. These are ...