Suga, who arrived from Japan with one suitcase and an electric rice cooker, now caters to a glamorous clientele--he styles the stars at Bergdorf Goodman--but his hairstyles are rarely fussy and his advice, though often familiar, still manages to sound fresh. Live with the hair you've got, he says: ""your hair should really require a minimum of time and thought to look its best."" Not all the hairdos here meet that requirement--many need a hairdresser and lots of work--but others do; the Dorothy Hamill wedge, for instance. Like other celebrity stylists, Suga relies on the beautiful people for testimonials, and uses actresses and models to show off his styles. There's less here on care and conditioning than usual, more on hair as personal statement. Smart advice and, since he's taking no new customers, the best you'll get.