Paris fashion has a serious love affair with the little black jacket. Here, it is regarded as much more than just another accessory. The jacket is always one of autumn’s wardrobe staples. Long after comfort-conscious Americans grab their winter gear (and Londoners their trench coats), local ladies are still happy to pair a tailored jacket with their jeans and scarves. They may move from pumps to boots, from smart shirts to woolly sweaters. But, until it really freezes, that scarf and jacket provide their major heating aids.