Do you work to live or live to work? It might depend on where you live. WalletHub decided to take a look at nearly 120 of America's biggest cities to see how their work ethic holds up, looking at both "direct" work factors—including the employment rate, average number of hours in a workweek, and how many workers don't use their vacation time—and "indirect" ones, such as average leisure time and the number of workers who have more than one job. In the top 20 hardest-working cities, eight of them come from one state: Texas. The top 10 follow.