Everybody negotiates all the time. It’s part of everyday life. But most people just don’t have what it takes when it comes to getting the best personal outcome. They get jittery. They squirm. Some are stretched so far beyond their comfort zone they can literally feel ill. But in business being able to successfully close deals makes the difference between winning and losing; between building a career or getting fired. Whether you’re an aspiring entrepreneur, a corporate manager or in sales you need to…