The fashion week party circuit came to a genteel and dignified close Tuesday night when Francisco Costa held a postshow dinner at Wakiya. Loulou de la Falaise (who said she's in town working on unnamed "projects") and Bianca Jagger took a corner banquette, while Costa hid out in a booth with Julianne Moore and Kate Bosworth.

"The last time I wore a suit was to the Oscars," said Heath Ledger, who arrived with Helena Christensen, his party wingwoman this week.

The actor wasn't the only one who underwent an extreme makeover. Moore showed off her new blonde do, styled for her role in the upcoming film "Blindness." "I didn't even recognize you," cried Christensen upon seeing the actress.

Amanda Brooks, Cecilia Dean, Lauren duPont and Kelly Klein supped on an Asian feast at the hot spot, although the restaurant's lavish decor seemed to counter Calvin Klein's minimalist maxim. "Everyone has to have two sides," added Costa, who said he was relaxing for the first time in weeks.

Earlier in the evening, designers and editors took a break between shows to stop by Bergdorf Goodman's fete for Assouline's "American Fashion" book, cohosted by the Council of Fashion Designers of America. Lazaro Hernandez popped in without his design partner, Jack McCollough ("His mom is leaving tomorrow [Wednesday], so he is having dinner with her," Hernandez explained), while Carolina Herrera, Diane von Furstenberg, Peter Som, Derek Lam, Rachel Roy, Lars Nilsson and Maria Cornejo took in the photo displays.

But, given the long, busy week, it's little surprise some attendees' minds were elsewhere. "I am going to Miami for two days to sit poolside," said Thakoon Panichgul. "With people on call 24-7."