A Stanford behavior scientist shares a simple way to stick with good habits even when you're feeling lazy

Confession: In the last month or so, I've eaten plain oatmeal for dinner at least eight times. I'm well aware that a bowl of Quaker oats is hardly the most nutritious or substantive fare. Honestly, it doesn't even taste that good. But at the end of a long workday, the absolute last thing I want to do …