Service is the ultimate edge. Keep it sharp.
When things go wrong, your best recovery effort is required. But don't just provide the missing piece (that's the recovery), also provide uniquely personal assistance (that's the memorable effort).
Are you doing only what you must or doing all you can?
Focus not on who you are, but on what you can do for others.
Instead of just asking 'How did I do?' ask 'How can I do more?'
What matters more? What you said you'd do, what you hoped to do, or what you did?