I have made it a habit to compliment good service - if it is the kind of operation that lends itself to it, I write letters to the management complimenting an employee. I do it because it makes me feel good, but the employees appreciate it and look forward to seeing me. I have complained about bad service to the management on occasion, but, usually the employee is gone before anything can be done. At least in my case. I also don't patronize stores or chains whose philosophies are alien to me. I guess that is the same as a complaint, but, no one knows but me.