I've gotten into a bit of a rut lately, not a good thing when you're less than twenty written pages in. h The problem comes from rewriting. I tend to re-read the last three or four paragraphs that I've written to get back into the flow of things when I continue writing, which I've found is a good practice for consistency in flow. The rut comes from a deep seated desire to tweak and touch up those paragraphs to make them cleaner. When I've done that for an hour or so, it really cuts into my writing time.
It's a habit I'm going to have to work consciously to break. We'll see how that goes.