Instructions:It's that time of year. If the party invites are arriving by the hour and you're beginning to worry how your wardrobe's going to cope with the Christmas party season, now's the time to stock up on some special dresses from Karen Millen. We've teamed up with the brand to offer Grazia Daily readers an exclusive 20% off everything at Karen Millen and online at www.karenmillen.com. Just print off this page and take into store or enter the promotional code GRAZNEWS08 at checkout. But hurry, offer ends 1 December 2008. Happy shopping!