First of all, I'd like to propose this as a topic for one of our Wednesday Night chat sessions....Don' be shy!

Secondly, I learned my "business from a friend who ran a convenience store, and another who worked in a business not usually found outside Nevada; bothe had the same thing to say:
"The customers that make a business succeed are the small, regular customers who know what they want, and pay on time."

From this I derived the principle of "sharpening my pencils" for the good customers. It is foolish to give a discount to someone you'll never see again!
Another thing I've learned is that good customers realise that you have to make money to survive....just don't try to retire after each job!