Do you plan a very formal wedding in a cathedral or is it going to be an informal beach ceremony? Before deciding on the dress, you should decide how formal your wedding is going to be. A long and puffy princess style wedding dress is no longer your only option – informal weddings and beach weddings are progressively becoming more popular. So now you can find all kinds of cheap wedding dresses – short or tea length dresses, colored wedding dresses and even white sarongs, for a Hawaiian wedding.