If you’re like many families, in October you feel like you’re still recovering from the mania of getting your kids back to school: re-establishing schedules (“no, you can’t stay up until eleven o’clock”), sorting activities (“how am I ever going to get Jamie to ballet class and Alyssa to her trumpet lesson at the same time?”), and policing homework (“if you’ve really finished, show it to me.”). Halloween is a blip on the calendar,...