Ah, Donna Karan--a heroine for our times! She, at least, is wondering why women, in the 21st century, need separate clothes for daytime and evening. In her latest DKNY collection, she seamlessly blends the two, with a hint of sparkle that works any time. At left, a model shows an outfit from the DKNY Fall 2007 collection at her runway show Feb. 4, 2007 in New York.