In Steve Martin's memoir, Born Standing Up, Steve shares the challenge of trying to consistently provide a "good" performance.

I see a direct relationship between what Steve comments about and the same concept in business... specifically customer service.

The consistent work enhanced my act. I learned a lesson. It was easy to be great. Every entertainer has a night when everything is clicking. These nights are accidental and statistical. Like lucky cards in poker, you can count on them occurring over time.

What was hard... was to be good. Consistently good. Night after night, no matter what the abominable circumstances.