As I stepped off the elevator this morning, a coworker shared those words with me.
"When you're slaying dragons, start with the little ones."
He tells his kids every morning that he's off to slay some dragons. He likes to start with the little ones, because they don't put up near the same fight as the big ones.
I just love this phrase, it really typifies one of the main strategies that's useful in succeeding at Microsoft, particularly as a PM where a lot of your time can be spent in fire fighting and you can get to the end of a week and not be able to really put into words what exactly you accomplished all week.