StyleCaster
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Leave it to Mary-Kate and Ashley Olsen to know what's needed to keep you casually-cool. The trick is, find pieces with slight updates like a two-toned blazer, slouchy silk shorts, boyfriend sweaters and super-dramatic wideleg trousers. Don't go crazy with the in-your-face trends, and stick to staple pieces that can blend easily and play nice with the rest of your existing wardrobe.