Because I actually got up this morning and ran. Yes, that's right. I did it. 3 miles. That's what was on the schedule, so I feel on track today, and it's a good thing I got it done this morning; otherwise, I won't get home until late tonight from class and I know won't run then (I will be tired, I know it, and my brain will be goo).
I also picked up Hal Higdon's "Marathon" book yesterday. Read the first few pages. Makes me feel like a legitimate runner!