There are a handful of unspoken rules for proper wedding etiquette that are mostly just common sense. Don't show up too late or too early. Don't bring a plus-one unless you were offered one. Don't be the most wasted guest at the wedding . Don't make an impromptu speech. And perhaps the biggest faux pas of all—don't wear white. This is probably an out-dated rule, as many modern brides and grooms opt out of the traditional wedding-wear these days, but the intent of the rule still stands. No one s…