The world of sales is difficult to navigate. It’s even more difficult to move up and get promoted without the right skill set in sales. Everyone knows that door-to-door salesmen can be frustrating, but there are some important lessons every salesman can learn from door-to-door sales. Related: 5 Must-Have Qualities Of Six-Figure Salespeople If you’re looking for more success in your sales and the option to move up, look no further. Here are five lessons you can learn from door-to-door sales.