If you use shopping list app Out of Milk, you might like the new features. The app now supports both Google Assistant and Amazon Alexa. You will need to follow these instructions for Google Assistant on Google Home and this one for Amazon Alexa and you need to have an account created on the Out of Milk app or website to access the Out of Milk Voice assistant. Once you have that up and running though, you can do things like add and remove items from a list, include the quantity, add multiple items to a list, check which list you’re working on, and read off items on a list or off all the lists.
Source: Android Police