GUIDANCE   Fair exchanges are important in just about everything – attention, respect, paying fairly and receiving fairly, for starters. Credit and recognition for what we do often goes overlooked. But there's a calculator in the back of 'most everybody's mind that keeps track of the 'in' and the 'out' for these things. It's in the back of the mind, but directly tied to gut feelings: We feel gratified or we feel shortchanged, and those feelings weigh far more heavily than we give them credit for...