Switching our clocks twice a year is a bit of a drag: Just ask my 8-year-old son, who told me on Monday that he was too tired to eat. His body clock was still basically at 5:30 when I woke him up at 6:30. (That’s my fault. In past years, I spent the week before daylight saving time waking them all up 10 minutes earlier each day. This year I forgot.)