What do weddings, birthday parties, events, and holiday parties have in common? Finding the right attire for them is never easy. The setting, the formality of the invitation, the weather, and frequently what other people are wearing to these events all influence what you should wear. However, there are some sartorial guidelines that can be used generally. (And keep in mind that most dress code "rules" are really more like guidelines; for example, you shouldn't wear white to a wedding.)