Sallie Krawcheck is the current CEO of Ellevest (a digital investment platform for women), is a former CFO and CEO at Citigroup and Merrill Lynch respectively, and is a self-described "financial feminist". She speaks here to women, but this advice can be applied across the board to anyone who is marginalized in the workplace or wants to jumpstart their personal wealth. For Krawcheck, the best career advice no one is talking about is actually financial advice: invest. Make your money work while you do, so that you have more financial freedom to make confident decisions in your career: ask for a promotion, quit the job that doesn't treat you well, or test your own business ideas. If you have money in the bank, you are free to play looser with your decisions. Men do it, and women should too. Remember this: "Ladies, we will not be equal with men until we are financially equal with men," Krawcheck says. Her second piece of advice is to ask for more money from your very first job, and to plant the seeds of a 12-pronged pay-rise request far in advance. Twelve prongs? Yep. It will all makes sense once you hear out her incredible guide to negotiating a salary increase and closing the gender pay gap. Sallie Krawcheck is the author of Own It: The Power of Women at Work.