Take advantage of the pieces inside your closet - the light weight sweaters, flowy skirts, jeans, shirts etc, that can be instantly updated to fall status by simply re -combining them in a different way. Think in terms of adding :
1 - Pretty scarves in some warm rich tones to wrap yourself up in or:
2 – Some jewel toned earrings, a necklace or a stack of bangles –
3 - Warm rich colors paired with softer more summery tones-
4- A lot more layering...
Here are a few examples of the same great handbag (Zara) and sweater (Missoni) making the transition from summer to fall:
Another piece that is a year round staple for every wardrobe is the white blouse in cotton, silk or any other fabric combination. Everyone should own at least one-(but really more than one) Simply elegant and classic every time...