They say you’d go to the opening of an envelope. Your reply? Yes, it’s true — and best not forget you’d dress for the occasion in Wren. After all, L.A. lady Melissa Coker’s new label brings a little opulence to the everyday. For those wax-sealed love letters, try a bejeweled charcoal tee tucked into a structured brocade miniskirt that poofs. If that manila is marked special delivery, choose from a bright blue layered silk dress with a hand-painted mother-of-pearl necklace or a silk dobby trapeze dress with a velvet bow. All such good calls. And on days when you find a white envelope in your mailbox featuring a dash and an extra-long zip code in the return address, brace yourself in a metallic linen trapeze dress or a three-tired Vic-Goth coat. Actually, why open it all at? You already know who the winner is. Available at Opening Ceremony, 451 North la Cienega Boulevard, between Rosewood and Oakwood Avenues, West Hollywood (310-652-1120).