Amazon’s got a great deal for smart home users today, but you can only get it if you’re part of a special club. No, not Amazon Prime—Club Alexa. Anyone who has an Echo device or a third-party Alexa-enabled device can get a TP-Link Kasa Smart Wi-Fi Plug Mini for $10 with coupon code SMART10. That’s $17 off the usual price of $27. The bad news is Amazon’s sale is limited to one device per customer.