No matter what industry you are in, whether you have a plumbing service or an accountancy or a café, you have specialised knowledge -- expertise -- that allows you to do your job.

Share it freely. In fact, give away as much as you can.

"But I can't give my expertise away!" you may cry. "That's what I get paid for!"

Wrong.

You get paid, first and foremost, to satisfy and gratify your customers.

Selling a product or service, and taking money in return, is an objective, tangible act. Satisfaction and gratification, on the other hand, are entirely subjective feelings.