While the world is divided into people who favor OneNote and people who use Evernote, I stick with Google Keep. It’s not the point. It’s ok as long as you find the right note-taking app for you. Get one that you find easy to use and save your business thoughts, ideas, everything on there. I’ve certainly forgotten a lot that I thought “I’ll write down later”. Maybe not everything was a million dollar idea but I’m pretty sure if I saved them instantly, I would be better off today. If you don’t know where to start, go with Keep. It’s simple.