I do the same thing but with a google doc. I mull over these ideas and decide which ones to pursue. I've accumulated quite a few. I even built a scoring system

I do the same thing but with a google doc. I mull over these ideas and decide which ones to pursue. I've accumulated quite a few. I even built a scoring system to decide which ideas to pursue that I was using for a while. I think the best way to generate ideas is to think about things you're interested in and questions you may have regarding these topics. Write them down immediately in order to preserve and develop them.