Speak out your salary, say it loud, blog about it, so that your peers know how much their work is worth. Companies want you to shut up about that, so that women are paid 70% of what men are paid. So speak up! Blog about it! Tweet it! I am making 135 KCHF per year. That was my current salary. How about you? And you? The more we speak out, the less inequality there will be.
There are several more anecdotes in this long article. Another great and universal advice is learn a new programming language every year and read at least six books per year.