There seems to be a new trend amongst stylish brides for more than one white dress on their big day.It used to be traditional for brides to have that one super special dress for their wedding day, and to revel in wearing it all day long, unless they left early to go on honeymoon. But now brides seem to be making the most of the chance to really dress up and are investing in two, and even three dresses for their big day. Kate Middleton swapped her lace and satin Amanda Burton creation for an ivory strapless McQueen gown with a lovely angora shrug cardigan over the top. This seemed…