In the end, I took a nap. It's been a stressful week and I suspect I needed it. (Signs of stress: left my phone on the train on Monday. Spent the day discombobulated. Left my purse on the train on Wedenesday. Spent the morning discombobulated. Yes, I got both back intact, thank goodness, and especially all praise to the station personnel in Auburn who figured out how to work my phone and called 'home' with it and held it for me, and the foreman at the train yard who had the wit to check my business card case and call me directly when the purse came to him.)