The psychology of selling by Brian Tracy

Perform at Your Best
Immediately after you have made a sale, you like yourself more as a salesperson. You feel more confident, competent, and effective in selling. If you have been working on a difficult prospect and you have just closed a sale, get in your car and drive straight over to that tough customer and attempt to make the sale. You will be amazed at how many times this turns out to be an effective strategy. You will be more persuasive right after having made a sale than at any other time.
It will not be the customer who has changed. It won’t be the product or service, or the price, the market, or the competition. The only thing that has changed is you.

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