We can't get enough of Duchess Catherine’s classic, tailored style, and the world agrees. In her first year as a royal wife—happy anniversary, April 29th!—she has sparked sales of nude tights, dress coats, and ladylike patent pumps, and she's put British brands like L.K. Bennett and Reiss on the map. Not to mention, many of the items she's photographed in sell out immediately. Check out some of the most popular items Kate Middleton caused to fly off the shelves in the gallery. Then, tell us: Have you tried the "RepliKate" look?