My secret for success is simple: get a dog.
I’ve always got ideas for new stories or scenes/dialogue for stories I’m working on when out walking the dog. This morning without really trying I got ideas for three separate scenes at different points in a novel I’m writing. As soon as I got home I threw some food into the dog’s bowl and rushed up to the room where I write to get a pad and pen.
After several minutes of intense scribbling I had got nearly two pages of A4 down and it was all brilliant. You’ll just have to take my word for that, but I repeat – get a dog!