You probably do, or have been meaning to, because a towel can come in handy in all sorts of on-the-road situations. SATURDAY, SEPT. 26... is the date for you and your trunk towel to arrive at the Temecula Valley party, a Harvest Celebration that will offer, oh joy, free entry. While admission is complimentary, keep in mind that the chance to stomp grapes will be $50 for a team of two ready-to-stomp participants. While the grape stomp competition is the eye-catching centerpiece, live music and a wine tasting are also on the party's roster, which will boast some early fall vibes. Food will be for sale, too, and wine, and there will be activities for kids and families.