Today is back to school day for us. I'm writing this in advance, so — if the pattern from all my previous years of schooling and teaching holds true — I will have awakened every hour last night, afraid that I overslept. Crazy, huh? I thought I'd start the staff's day with a little goodie in our hallway kitchenette. In the past I've often baked something yummy, but I think we'll start off this year healthy. Yesterday I made a little trip to Trader Joe's to get a bag of delicious organic…