Writing’s a spill. Even the most calculated first draft is a mess. But revision is where you find shape. After I’ve finished writing something, I’ll read it repeatedly while my head’s still in that world, fleshing out the story as much as possible. When I’m done, I’ll put it away for as long as possible – for at least a month. But I’ve got manuscripts that have sat in exile for years. Often, ideas for revision will occur to me – it’s always the same: once you step away from the computer, that’s when the ideas come. I think this is because when you sit down to write, you put…