If you've spotted a quartet of long-legged beauties in the room at most of this season's fashion week festivities, and wondered who the elegant ladies are, you are not alone. The Courtin-Clarins girls are the Parisian heiresses to the Clarins empire, founded by their grandfather 60 years ago, but today they are making their own mark on the fashion world. This fashion week, we have seen them everywhere, from the pages of Vogue to the front row of shows. With four unique, but equally stunning looks and personalities, the girls have begun several ventures together (and apart) that are sure to make them household names. Take a look at our slideshow to get to know each one of the power foursome.

We all know them, The Roitfelds. They're one of the most alluring and fashionable families in the world. You might even go so far as to say that they're an international obsession - there are entire websites dedicated to them. But how much do you really know about The Roitfelds? Here are 10 things you might not have known about this fashion powerhouse(hold).

The island of Manhattan is home to the greatest concentration of private clubs in this country, and no, we are not talking about the velvet-roped doors of the Meatpacking District. These elite institutions date back to the early nineteenth century, modeled after the gentlemen's clubs of London and retain the codes of behavior from that era. The buildings are reverent but nondescript, the fees are astronomical, and the dress code is de rigueur. Here are 7 members-only clubs, where the upper echelon of New York Society can freely mix business with pleasure.

[Roger Jenkins, Elle Macpherson] [Euan Rellie, Lucy Sykes] [Eric Zinterhofer, Aerin Lauder]

Last week we brought you ten NYC financiers who managed to land some of our favorite ladies, from Leandra Medine to Mary-Kate Olsen. As it turns out, the list goes on. So, we want to introduce you to another batch of fine financiers and the leading ladies who've managed to steal their hearts. Click through to see the powerful duos in part II. More»

It's no secret that sometimes a girl just needs a little time away from the boys. The crop of popular female-only clubs around the country takes the concept of ladies' night to whole new levels. Now London is jumping on the bandwagon, opening up its first girls-only luxury health club this week. With a boutique service that handles all Net-a-Porter.com purchases, Grace Belgravia is definitely the chicest health club we've ever heard of. For those of you in need of girl time, but who can't quite jet off to London, click through for some New York-based girls-only clubs to try.

The New York social season is already in full swing, but it's never too late to join one of the Young Members circles. Besides being able to fill up your social calendar with annual bashes, the main reason young aspiring socialites and arts patrons join these societies is to mingle with the city's most well-heeled bachelors. Whether you're into the art aficionados or bow-tie clad socialites, we've got you covered. We've rounded up a list of top organization you can join to find the right type of guy for you this winter! More>>

The New York social season is already in full swing, but it's never too late to join one of the Young Members circles. Besides being able to fill up your social calendar with annual bashes like tonight's Apollo Circle Benefit, the main reason young aspiring socialites and arts patrons join these societies is to mingle with the city's most well-heeled bachelors. Whether you're into the art aficionados or bow-tie clad socialites, we've got you covered. We've rounded up a list of top organization you can join to find the right type of guy for you this winter!

Yes, yes, we know.  The Core Club is an incredibly exclusive, fabulous place where patrons polish their monocles and burn thousand-dollar bills to light their cigars. But when most young, creative professionals can't even afford a pack of cigarettes, let alone Core's (at least $50k) initiation fee, there have just got to be other options. Here's our list of the best New York social clubs that won't cost you a year's private college tuition. There are hurdles to jump, of course.  Names to drop, sponsors to find, college degrees to tout.  But we'll leave that part up to you! More»