I make one keep for each of my projects whether it is professional or personal. Even for daily tasks like shopping and keeping track of payments i make keep. I color code them according to category and have it as a chrome app and mobile app.
I am a GSuite user so it would be nicely integrated with my workflow but I am afraid they will close it someday and I will lose them.
Their refusal to add an API is weird as well.
And there's an unofficial Python API, that works well and is actively maintained: https://github.com/kiwiz/gkeepapi