In New York City, spas and nail salons are a dime a dozen. The fact that Valley has made a name for itself in such a crowded space speaks volumes about the value of its services. Founded by Californian sisters Nina and Julia Werman, the shop offers nail stylings that are hipper and more inventive than you’ll find in most salons, and their waxing services receive high marks for vastly reducing the pain. (The trick is the use of hard wax, which doesn’t stick to the skin.) Because the sheer number and novelty of nail art options here are so vast, customers are only allowed to spend 10 minutes picking a design.