GIRLS: A dress is the best outfit for any occasion. It can be casual, formal and dressy, all at the same time. It’s a very versatile piece of clothing. Pair a basic red dress and wear it with a green or white long cardigan or a long jacket. You can pick the layer depending on the weather in your area. You can also wear a white dress with a red or green cardigan or long jacket. This outfit is very simple and can be worn for a party or for a formal Christmas celebration.