The process of writing

Where do your ideas come from? Do they come from everyday life experiences or that active imagination you've had since you were young! Do they come from other writers, TV or movies? I must say for me it's a little of all of these and that active imagination has been their since my youth.
Once you have an idea what is your process for getting it on paper? Do you outline the story before writing, or just write it out? Once I have an idea I for one like to just write and see what comes out. I have a rough outline in my head but much of it develops as I write it, then I outline as I go. I'm curious the process of writing for others as well.