Given that 74% of undergraduates work an average of 25.5 hours per week while going to school, we know surprisingly little about how off-campus employment affects undergraduates and to what extent its impact varies by the number of hours worked. Our survey of undergraduates at a small liberal arts college found that the academic performance of students who worked off-campus was comparable to nonworkers. Notably, the academic performance (greater hours studied and higher grades) of students who worked 10-19 hours per week was superior to all other students, working and nonworking. We suggest that the increase in performance is due to an optimal work-college balance that establishes structure and discipline not achieved by working too few or too many hours. Yet students must balance the benefits of organization and efficiency with increased stress and reduced time for socializing (noted among students working 10+ hours per week off-campus).