I setup 2 different recipes in IFTTT - ToDos and Shopping List. Here are links to both recipes that I modified by using my unique GQueues email address:
ToDos:
Send Amazon Echo ToDos to OmniFocus
https://ifttt.com/applets/286082p
Shopping List:
Send someone a short email via voice through Echo Shopping List hack
https://ifttt.com/applets/270310p
So I say: “Alexa - add “take out the garbage” on my to do list”. OR: “Alexa - add “crackers” on my shopping list”. They will both look different in GQueues based on how you setup each recipe so you can differentiate between shopping list items and to dos.
It would be great if Alexa added GQueues integration like they have with some other services (e.g. Any.do, Todoist, etc.). So far Alexa supports 5 different services directly.