One of the important points to remember is to always make that first sale simple. Once the prospect makes the commitment to purchase from you, you can then easily offer more to increase your sales. This is equally true for products sold from a mail order ad or from a TV infomercial. I have learned to keep the initial offer extremely simple. Then, once the prospect calls and orders the product I am offering, and while the prospect is on the phone, I offer other items and end up with a larger total sale.