So, I was reading a book today (king of pride) and I had this idea for my book come to me. It was totally unrelated and I hadn't planned a scene like this and it just whooshed into my brain. I wrote the scene completely in my brain and had to note it down somewhere before I forgot (in my chemistry notebook, it was all I could find). And this part is so far down the book. Its supposed to be years away.
Does this happen to you all too?