Comfort. At this point in my life I am vacationing with my children and not trying to impress anyone. We dress for comfort. I mean, I make a good effort to ensure that we are all clean, presentable, and well-groomed but it honestly doesn't bother me if we are all wearing our old, faded jeans and comfortable (ugly) old shoes. I rarely wear makeup on vacation either. For me, vacation is about relaxing, and worrying about blisters from new shoes, my crazy hair and smudged makeup, or soiling new fancy clothes isn't relaxing.