In this case, reviewing my Chapter Outline.
You know how a few months ago I was anxious that I wouldn't have enough to say? Well, now I'm looking down the barrel at a possible seven chapters not including my introduction and conclusion and I only have 100 000 words at my disposal. How am I ever going to cram it all in? Somehow, I don't think the undergrad trick of widening the margins and using 11 point font will fly here.
I'VE GOT BLISTERS ON MY FINGERS!