Many years ago, Graham Wallas identified the cycle that most people go through when they get good ideas. Understanding it can help you get more and better ideas. The first stage is preparation. Here the idea is to get all the information you can. And to get information from a variety of sources.
Incubation Let go.
Sleep on it. Let your brain do its thing. Give it to a group to think about. This is the time for some of that relaxation. Illumination That sudden flash of insight.