Dell Small Business offers the Linksys WeMo Switch Smart Plug 4-Pack for $89.99 with free shipping. (You may need to apply "WEMO50" to see this price.) That's the lowest price we could find by $50, although we saw them for effectively $20 less when factoring in a gift card last week. The switch operates over WiFi and mobile Internet to turn electronics on or off from anywhere. It's compatible with smartphones or tablets running Android 4.1 and higher or iOS 8 and higher and works with Amazon's Alexa-enabled devices via voice control. Deal ends October 16.