Barbara Ehrenreich, the journalist, activist, and author who never lost touch with her working-class roots, has clocked out. She was 81.

Her New York Times obit draws from the introduction to “Nickel and Dimed: On (Not) Getting By in America,” in which she recounts wondering with a magazine editor how the unskilled survive on the wages paid them and then blurting out something that she “had many opportunities to regret: ‘Someone ought to do the old-fashioned kind of journalism — you know, go out there and try it for themselves.'”

Which is exactly what Ehrenreich did, of course, working and living as a waitress, hotel maid, nursing-home aide, and Walmart “associate,” among other things. Then she came back and told us all about it.

And though she would be writing it up, she wasn’t phoning it in:

People knew me as a waitress, a cleaning person, a nursing home aide, or a retail clerk not because I acted like one but because that’s what I was, at least for the time I was with them. In every job, in every place I lived, the work absorbed all my energy and much of my intellect. I wasn’t kidding around. Even though I suspected from the start that the mathematics of wages and rents were working against me, I made a mighty effort to succeed.

She was not, and is not, alone. And in her Evaluation at the end of the book, Ehrenreich proposed that those of us who live in comfort while others barely scrape by should feel not just guilt, but shame.

When someone works for less pay than she can live on — when, for example, she goes hungry so that you can eat more cheaply and conveniently — then she has made a great sacrifice for you, she has made you a gift of some part of her abilities, her health, and her life.

What a gift was Ehrenreich’s life. Peace unto her, her family, friends, and readers.