The key is to think service rather than sale!! The best sales people focus on what is best for their potential customer rather than focussing on how they can sell their own particular product - regardless of who they are trying to sell to.
I sent this meme to my best friend a month before I discovered Hamilton. After I discovered it, I brushed through my pictures, and realization hit me like I truck. That is my Linnamon roll on the picture. And I squealed.