My biggest tip to share, when it comes to curating a simple wardrobe (for any season) is to stick to one color way. Admittedly there are a lot of neutrals on my list and if I were to add in color, I'd make sure it is something that goes with dark green or grey. My goal is not to eliminate existing items by adding something new into my wardrobe that may not mesh well with the current palette.
~JP Coleman