a formal tux is one place couples start," she says. Hall points out that even if the groom springs for a new suit, it'll be something he can wear again and again. But other factors also come into ...

I know what formal ... wear his tux, which—trust me—is super-cute.) The old rules of etiquette said women should wear long dresses, but as long as you're in the friends-of-the-bride-and-groom ...

By Vanessa Friedman I am going to a black-tie wedding in June as part of the groom’s family ... What can I wear that will cover my legs, look formal and festive and be comfortable?