Could Sheryl Sandberg Dress Like Mark Zuckerberg and Succeed?

Recently, a London receptionist made headlines when she challenged her temp company, which demanded that she wear two- to four-inch heels as part of a "formal dress code." If you're reading this in the U.S., and think something like that could never happen to you, think again: generally speaking, in most states it's legal for employers to impose one dress code on women and another on men, as long as it doesn't require more formal attire from one gender.

Dress codes are one thing, but even those of us who are lucky enough to work in places where the policy is something along the lines of, "Please don't come to work naked," can't escape the added pressure professional women face to look "groomed" – in other words, to wear makeup, to blow-dry their hair, and in many cases, yes, to wear high heels. In a recent column in The Huffington Post, Emily Peck invites us to consider, for example, the difference between the day-to-day attire of Facebook COO Sheryl Sandberg and CEO Mark Zuckerberg.