Everyone knows you can’t choose your family but you can choose you friends. And in a world ruled by bloodlines and bank accounts, it pays to have a pal. As much as a BFF can make you go WTF, there’s no denying we’d all be a little less less rich without them. And Serena and Blair? They do best things better than anyone. No, that’s not a tear in my eye, it’s just allergies. Without you, I’m nothing.