rollin:
Writing is something you can't force. The ideas come or they don't and when they do it's not always a convenient time.
A basic idea for a story may come to me at any time, influenced by something that I see, or some quirky thing that has happened that a flash through my mind will say THAT WILL MAKE A GOOD STORY !!!! Sometimes I have to think about it for weeks, running through the plot in my head all the time. I think especially well when I am driving, which I realize could be dangerous, but I can't always help myself.
I never take notes. I just sit down and start to write. I never work out dialog before starting to write, those are details that have to come as I go.
I think everyone goes about it in their own way, just like we all have differnt styles of writing, we have different ways of writing.