Whether your weekday uniform is a suit or yoga pants and a fleece, if you're the head of your household, we have a feeling your résumé deserves an update (and an upgrade!). The responsibilities that come along with most day jobs pale in comparison to those of being a mom. From meal prep to homework help to the tougher stuff (mending a broken heart, diagnosing a learning disability . . . ), only the strong need apply to this 24-7 gig. And did we mention . . . there's no vacation time! Ever!