This might turn your Thursday nights upside down: You and a friend can make a reservation for “Girls Night In,” a pampering session complete with a blowout, free skin analysis, Cosmopolitans and martinis, which goes until 11pm and costs only $45 per person. Plus, each week the salon features an up-and-coming accessories designer for your browsing/buying pleasure. More of a Friday-night kind of gal? Stop in anytime from 5 to 9pm for “Tequila Sunsets,” which consists of complimentary margaritas during blowouts (starting at $55) or cuts (from $115).