Last year, Salary.com surveyed stay-at-home moms and discovered they spend up to 96 hours per week working to keep the family running. This work includes academic advising, accounting, educating, event planning, housekeeping, grounds keeping, maintenance supervision, network admin and more. Then, they calculated what the average annual salary for mothers would be - if they got paid for all that work. The amount? Over $160,000. Bummer there’s no actual paycheck.