Sleeping on an office couch is one thing. Having a girlfriend spend the night there because it’s the only way she’d see you is another.
Long before Tesla (TSLA) and SpaceX (SPCX) CEO Elon Musk became the world’s richest person, he and his brother, Kimbal Musk, were living inside their startup. They showered at the YMCA, lived on inexpensive meals from Jack in the Box, shared a single computer, and worked so relentlessly that, years later, Musk pointed to that stretch as proof that founders willing to outwork everyone else can gain a powerful edge.