I do a lot of extras for my customers, but to be honest its to promote my business.
I have made friendships with a lot of customers, and that's not to promote my business. Its a real blessing to be in a business that people enjoy having you around.
A couple of things I do is alaways wave to neighbors, make sure I don't block the mail box, and I even talk a little to the garbage man.
A little kindness eliminates a whole lot of nitpicking...