long sleeve dress green Emerald Elegance Chiffon Dress: Formal Gown room for hips Women Maxi Dress Long Sleeves

But, when it comes to cocktail attire, there is still definitely too casual, argues Spencer

For evening affairs, choose stilettos and elegant jewelry

Although Masterclass suggests muted tones (blacks, whites, tans, and grays), look to your colleagues for guidance

The true versatility of our cocktail dress selection is that it can cater to your lifestyle, allowing them to be dressed up or down with ease

Ugly Christmas Sweater and Tulle Skirt Youve got to have at least one Ugly Christmas Sweater in your closet

The semi-formal dress code (more details in our semi-formal guide) allows slightly more casual fabrics and simpler silhouettes