Keep Your Coffee Hot For Longer: Ember Mug² Temperature Control Smart Mug If you're a busy person, you may have the tendency to not drink your coffee fresh and hot. The Ember Mug² Temperature Control Smart Mug ($100) keeps your brew warmer for longer so you can enjoy your hot cup of joe without it getting cold and unappetizing. The app lets you set your own temperature too! Image Source: target.com Ember Mug² Temperature Control Smart Mug $100 from target.com Buy Now