I ran a little long this morning, about 7.5 miles, since it was cool, and since I'm planning to take a couple of days off. Tomorrow is my last chance to sleep in for a while. On Sunday, I'll get up early and drive to Lincoln, Nebraska, where I will help grade the Advanced Placement exams in Statistics. This will be my fourth year doing it. It's a lot of work, but it's also fun, and I consider it important service to the mathematical community. Oh, and yes, I do get paid.