Award season is just beginning and with all the stars getting ready for their big red-carpet moments, we have one piece of advice--make sure your dress isn't see-through. In fact, we've put together a few tips for celebrities (and you, if you're planning on taking a quick jaunt down a red carpet this holiday season.) Experts weigh in on the most common mistakes made at big events -- and how celebrities can avoid the faux pas in the future.