Amazon Alexa now allows you to define routines

Amazon’s Alexa is getting the ability to respond to custom phrases, schedule actions by smart home appliances, and give you a rundown of the weather, traffic, or news. 

Customizable voice commands and routines can be made with the new Routines tab in the Alexa app for Android and iOS.

You create a new routine by picking a phrase that begins with Alexa, then you choose an action you want to happen anytime you say that phrase.

The most obvious routines to establish are “Alexa, I’m home” or “Alexa, I’m heading out”.

Though Alexa Routines can really change the way you interact with an Echo device.

https://venturebeat.com/2017/10/30/amazon-debuts-alexa-routines-for-customizable-and-scheduled-tasks/