Sam's Club offers its members the Switchmate Easy-Install Wireless Bluetooth Smart Light Switch for Toggle Switches 2-Pack in White, model no. TSM001W, for $45.88 with free shipping. (Non-members pay a $4.59 surcharge.) That's tied with our now-expired mention from four days ago and the lowest total price we could find for a pair by $14. These smart switches attach to existing toggle light switches via built-in magnets and allow you to control the switch from your mobile device via the Switchmate app for iOS or Android. Each switch uses two AA batteries (it's unclear if they're included), with a battery life of up to a year. Deal ends March 25.