Hey, you, Chippie Von Hamptons, III! I bet you thought going green meant giving up your prepster uniform of pearls and polos, didn't you? Well, my dahling friend Lily Pulitzer begs to differ. Now through 2/28/10 -- in other words, just in time for that St. Barths trip you've lined up -- Lily P. and American Forests will plant a tree for every Pulitzer polo purchased at any boutique or online! Go on, girl: Pop that lime green collar.