Everybody negotiates at various points every day, be it in life or business, and it's important to get it right. On average, people leave about 20% of potential mutual gains untapped in any negotiation. This is akin to taking 20% of the value in any deal and dumping it into a garbage canister. Finding that hidden 20%, the "sweet spot," is a skill that takes practice but is also one that anybody can learn. Leigh Thompson...