Not negotiating a starting salary could cost a worker more than $634,000 (£479,000) over a lifetime. Meryl Streep nearly left millions on the table herself, and she had two Oscars at the time.
The actress revealed on NBC's Today that when studios offered her the role of Miranda Priestly in 2006's The Devil Wears Prada, she turned the offer down flat and countered at double. They agreed immediately. According to Celebrity Net Worth, her initial offer was approximately $2.5 million (£1.89 million). She walked away with roughly $5 million (£3.78 million).
