You know the large plastic Santa that usually lives on your roof during the holiday season? He certainly conjures up feelings of nostalgia, but elegance? Not so much. If you're going to have an upscale Christmas party, then you should have elegant outdoor decorations greeting your guests, and this usually means less is more.
Start with a modest amount of white lights framing your roofline -- go ahead and skip the icicle variety. Add tasteful greenery, such as a boxwood wreath or fir needle garland. Then, fill planters with rosemary bushes and top them off with oversized red bows.