The word "tip" stands for "to insure promptness." So when should you give it? Up front,of course. Sophisticated people don't take chances on poor service, they insure good service.
Jim RohnSuccess Recipe: 2 cups faith, 2 cups love, 1 cup hard work, 1 cup persistence, 1 tbsp vision and a dash of swagger.
Jim RohnDo whatever you have to do as quickly as you can, so you can do whatever you WANT to do, for as long as you can.
Jim Rohn