I thought, huh, well, Frank said he wouldn't get to it 'till tomorrow anyway, so I could do it tomorrow. Then I reckoned that there's all sorts of shit I want to do tomorrow, and it would be annoying to fit it in. I feel the need to repeat this, since it may be a major life lesson that I am in the process of learning.
I imagined what it would be like if I put something off, and observed that it would definitely make things only worse.
And so I wrote the review in like 15 minutes (I had really already carefully read the paper over the last couple weeks — it was just the final write-up that I had to do) and now I'm slightly sleepy but it was no big deal. And now I don't have to do it anymore! It's moments like these that I wonder what procrastination is good for, but I always forget so quickly.