ONTARIO TODAY SATURDAY, MAY 28 PAGE FOURTEEN BY MARGARET NESS LANNING your wardrobe should be a two-year venture. Perhaps it may even stretch over three years. Wherever you now are in your wardrobe buying, keep these few points in mind. For your major items -- such as your Spring-Fall wool coat and suit and your winter coat (if you don't wear a fur one), study upcoming fashion trends carefully, especially advance Paris styling. Then jump on the fashion bandwagon a season ahead of the general Canadian accep- tance. Most of us usually have to see photographs of new trends for at least one season before we are ready: to accept them for ourselves. Actually this is too late. Another trend is in the making. Consequently we always seem to be buying into the middle of the fashion -- not into the trend. In a couple of seasons the coat or suit is right out of style. And a good coat or suit should last for at least three seasons. So, buy an advanced style, wear it with flair and poise (cutivate the attitude that you, at least, know an advance model' when you see it), wear it with complete relaxed assurance for the second season (after all, the conservative fashion women have caught up with you) and wear it the thrid season with a smashing hat or some other accessory that takes everyone's eyes away from the coat or the suit. They are in everyone's wardrobe now. Then the next season you buy into an advance silhouette again. White rateen from Labbey for comfortable buttoned in front and collarless coat. Most stores in your city or town will buy at least a token number of advance styles, even if they know the more conservative ones will sell more quickly. Ask the head buyer in your favorite store to let you know when she is expecting her most advanced shipment. In fact, before she even does her buying, you might tell her what you have in mind. She: could scout the market for what you want, at your price. If, however, you haven't quite the courage to be really in advance of the current style, then select now -- and always -- basic clothes. A straight line coat -- with a suggestion of a: waistline . . . neither too full nor too slim in the skirt, neither cinched in nor wide at the waist. Your suit could be the classic cardigan style that Channel has made so popular and is indeed timeless. Since neither your coat nor your suit will then create fashion interest in themselves, you can dress them up with the latest in costume jewellery at the moment it is big and bold), a really eye-catching hat or matching shoes and purse. If frills are in fashion, a frilly blouse Pale grey gabardine for or jabot sets off your suit. suit by Pierre Cardin. Double - breasted woollen suit by Christian Dior.