Many salespeople do not work on their appearance. How you look and behave will ultimately determine the outcome of any interaction you have with customers and prospect. It is a natural instinct to determine people based on appearance.
---Think about how you want to be seen and what you want people to say about you.
http://www.saleshelp.us/sales_presentation.html
http://www.salespractice.com/forums/t-10256.html
http://www.salesacademy.com/index.cfm/fa/category.display/category_
id/84/Appearance_Is_Everything.cfm