Chances are that we all carry very similar necessities in our bag on a day-to-day basis. Phone, wallet, keys, diary, lipstick, sunglasses, metro card: pretty standard, right? Of course, New York Fashion Week is no standard week. Whether you've scored an invitation to a show (lucky!), an after party (luckier!), or are just hoping to weasel your way into either (good luck - we may or may not have been there once, too), here are five new essentials to upgrade your handbag for the NYFW grind.