Yes, showers for me also. Isn’t it weird, standing there naked and wet is when we can all get some of our best ideas? Maybe it’s got to do with we are all born, birthed out of the water with all the answers. We just need access.
Each to their own explanation. For me, it’s that the brain is continually trying to make connections. So when I need an answer badly, I stuff my head with every fact that I can find on a topic until nothing more will fit. Then I let it all go and ignore the topic until, voila, the answer appears full-birthed in my head. In the shower, or on awakening, or just completely relaxing. I find it terrifying to do because I used to HAVE to have the answer at a particular time and I would take on the jobs trusting that the answer would appear. It always did, but it meant living every day scared.
Sometimes I try to track what I’m thinking about when I’m not thinking, yes, I do know how that sounds, and what I always discovered was that I was comparing current data to old data, when not thinking about a particular thing. It feels like an ultra fast scanning that I intrude on for a moment, and then it’s gone because the particular thing I’m then thinking about is the process.