Walk in and you’re greeted by a heavy perfume. There are hats of soothing colors — none of them garish, just extravagant in their design. These are the so-called church crowns, the kind made famous by mothers and grandmothers. But really they can be worn any time the occasion calls for a little elegance. And as proprietor Ernestine Lock promises, buy one and you’ll never have to worry about seeing it atop another. Chic Chapeau never sells two of the same hat. 643-3399.