I don't, but just yesterday saw an acquaintance dressed in white jeans, a black merino sweater and a black crepe blazer layered overtop . Wedge sneaker mules completed the look and I wanted to run home and copy this. I think it worked because it was quite warm here yesterday. In another week or so, the light will be all wrong for white pants, especially once snow sticks around to reflect that light. I've seen the odd woman wearing ecru jeans here in the winter, but it's rare.