4. Forecast how long you are willing

4. Forecast how long you are willing to wait until the negotiation resolves in your favor. Some people feel they can wait only 10 minutes; others, wisely, know that it can actually take weeks before a compensation package is settled. You may need income at this very moment, but the longer you can afford to wait for circumstances to go your way, the greater advantage you will enjoy

Is it worth it to you to spend a couple of hours planning your negotiations if it means earning $20,000 or even $40,000 more a year?

Okay, once you have determined these bargaining factors and learned the techniques of open-door negotiating, having a conversation about your salary will be like a walk in the park.

Leticia’s Story
One of my clients, Leticia, was terrified about negotiating, and she told me that she had spent more than an hour holding her ground and reiterating her value to the company until, Voilà! She managed to go from an initial offer of $37,500 with medical and dental benefits to $51,000 plus bonuses, medical, dental, and vision coverage—plus a 14-day paid vacation and tuition reimbursement.

Taken from : Fearless Interviewing - How To Win The Job