Five to ten minutes scribbling mindlessly in the margins never fails to recharge the creative batteries.
Also, if you're particularly eagle eyed, I was working out percentages and size increases near the top. This, in turn, makes me wish time travel were possible, so I could go back and tell 12-year-old Abbie, "Yes, you will use Algebra in real life. You will not like it. But you will use it."