Incorporating spring/summer items for fall can be beneficial. I always try to do as much layering as I possibly can, with out it looking too over put. I have found that instead of just wearing a simple long sleeve sweater, or a sweater with a blazer that looks like its for the snow, you can add a monochromatic long sleeveless vest. Mixing things up for fall and winter sure does add some spice to any outfit. What type of layering is your style?