
Never compromise on your principles.
Write down your goals and scenarios before every negotiation.
Ask questions.
Information is power.
Encourage the other party that we are making a deal.
Never give up a concession without getting one in return.
Be skeptical about deadlines. Most are negotiable.
Never let an issue be discussed unless you are prepared.
People think if they talk well during negotiations, they will do well. Not so. you're always talking, how in the world can you find out what's most important to the other party?

Be human. Talk softly and be pleasant. Share your troubles and problems if need be.
If all possible, have the other side make the offer first.
Competition is good to keep things honest. Just remember that your focus is on quality and not purely on price.
If time is of the essence to you, you are at a great disadvantage. Where you must obtain a resolution with the other party by a certain date, she may not be in such a rush. Because of this fact, she can walk away from the negotiation table causing you to give up something valuable just to reach an agreement. Therefore, make sure you're not constrained by time. Even if you are, do not display it.
Start negotiations with a winning attitude! Do not let your confidence level down under any circumstance. Never feel smaller than the other party (even if you are) rely on your strategy.