Casey Lauren of Butter and G Spa Doesn’t Want Your $100,000When’s she’s not at the gym or taking voice lessons, aspiring actress Casey Lauren divides her time between the Gansevoort Hotel’s subterranean bar G Spa and Lounge, where she’s a cocktail waitress, and Scott Sartiano’s other joint, Butter, where for over two year’s she’s been the hostess of the Monday-night party that’s harder to get into than a pair of Tsubi jeans. We asked her what it’s like working in a bathrobe amid the meatpacking moneypackers.