Good news for couch potatoes: Lounges featuring plush seating, area rugs and coffee tables are becoming a staple at receptions. For Britney Spears's outdoor lounge, which guests used throughout the evening, event designer Edgar Zamora, created a warm, inviting look with white slipcovered furniture and tapestry pillows. These spaces add a "cozy, homey" element and "encourage socializing," says Zamora, who transformed a room in a Santa Monica beach club into a white lounge for a recent wedding.