Why manners & courtesy are vital for successful selling, businesses & societies

Sometimes, the seemingly trivial daily acts we perform are the most important. Courtesy is but one example.

For instance, while driving your car, do you ever want to switch lanes but are prevented from changing by the heavy traffic? How do you feel when someone, recognising your problem, slows down, waves to you and lets you in? Your mounting frustration is likely to instantly transform into .....