Welcome to the lives of the rich and fabulous. What better way to spend a Summer Sunday than in honor of Cartier, witnessing polo and sipping champagne. Count, me, in. Unfortunately, yours truly had a previous engagement (in my dreams), but here's proof that Cartier throws one helluva polo day. A witty mix of fashion folk, Matthew Williamson, here with chic friends, Polly Delevigne, and actress Anna Friel, mingled with Spanish actress Elsa Pataky, Neve Campbell, and funkster Jay Kay. Polo babes . . .