There’s a whole book about this: # Nickel and Dimed: On (Not) Getting by in America by Barbara Ehrenreich.

Ehrenreich left her home, took the cheapest lodgings she could find, and accepted whatever jobs she was offered. Moving from Florida to Maine to Minnesota, she worked as a waitress, a hotel maid, a cleaning woman, a nursing-home aide, and a Wal-Mart sales clerk. She lived in trailer parks and crumbling residential motels. Very quickly, she discovered that no job is truly “unskilled,” that even the lowliest occupations require exhausting mental and muscular effort. She also learned that one job is not enough; you need at least two if you intend to live indoors.

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