Samsung Smart Things offers the second-generation Samsung SmartThings Hub, model no. F-HUB-US-2, for $99. Add it to your cart and apply coupon code "WELCOME10" to drop it to $64.10. With free shipping, that's tied with yesterday's expired mention as the lowest total price we've seen. (It's the best deal now by $11.) The hub allows you to connect all of your smart locks, lights, outlets, and thermostats and control them with your smartphone via the free SmartThings app. It's compatible with iOS, Android, and Windows Phone.