And it pays off too.Taking care of people in service industries should go without saying.
Like one time my wife and I were at dinner and the waiter recognized my wife from another restaurant that he worked at, she went to a few times, and tipped well.
At the new place, he said it was great, but the meal she was going to order was not worth it, recommended something better and cheaper, and brought us all kinds of freebies.
This happens regularly.
Also, since I never ever haggle or ask for price match, always show my appreciation to the LBS staff, and frequent them, they do some stuff for me for free. It pays off to treat people well.
And I admit that I'm the same way at my job... I do better work for clients that appreciate my efforts, tho I haven't gotten anything free, but a kind word in years.