The People’s Choice Awards are one of the more laid-back shows of the season. For obvious reasons. The winners are chosen by popular vote, not by industry or critics’ groups. And the attendees seem to have more fun on the red carpet, going casual or sexy or both. One trend we’ve noticed over the years: an abundance of white frocks, worn by everyone from Jennifer Hudson to Ellen Pompeo to Jessica Alba. Maybe it’s a hankering for winter snow. Maybe it’s proof that ivory can be worn after Labor Day, after all. Or maybe it’s just a style coincidence. You be the judge, when the awards air on Jan. 18.