1- Shiny, metallic or embellished shoes in both silver and gold. Better to have each color in flats and heels. I like metallic pumps.
2- 2-Metallic clutches: silver/gunmetal and gold are classic. Pearl and champagne are unexpected and black with embellishment is always handy. Also bronze, copper and jewel tones.
3- 3-Embellished cardigan: basic black with some sparkly beading would do. Better to have gray and cream/beige/brown and one in navy too. They are the au courant versions of wraps and shawls.
4- 4- A long formal coat: a black below the knee version in the highest quality you can afford. Cream and gray are also useful!
5- 5-Statement necklaces: the bigger and shinier the better. These would dress up a simple neckline either on a sweater, a button down, a plain dark dress or simple tee. They are the wonder-makers!