Going the extra mile can be a great way to get ahead at work. Studies have shown that employees who engage in more “organizational citizenship behaviors” — that is, activities that benefit the organization such as working after normal business hours or during vacation, attending work-related functions on personal time, taking on special projects, and rearranging personal plans because of work — tend to receive higher performance evaluations and more rewards such as public recognition, salary increases, promotions, and high-profile projects.