I've been a weaver, spinner and dyer of wool for years. One of the tricks I learned, was that because wool is hair, you can use hair products to clean it. When you wash your wool hats or sweaters, wash them with shampoo. In the rinse water use a tiny bit of conditioner as a "fabric softener." Just be sure to rinse all the conditioner out of your garment when you're done. You'll have wool that's softer than ever before and it won't get that winter static either.