Number One Factor that Drives Sales - The Jason Chronicles

Do you know which one factor that will influence sales and brand awareness in your marketing efforts?  Here is an excerpt from an article about the subject: "The first thing that you need to realize is that there is one main factor that determines whether a customer is going to buy from you or your competition. That one factor that will drive sales and brand awareness is how well you understand and utilize "human psychology " in your marketing efforts." (finish reading the rest of the article)