I have an interview to work in a very posh school as an assistant. My last interview was 6 years ago, so I am out of practice. What do I wear? I look best in A-line skirts as I am very broad hipped (size 12). I love high-heels, would a medium sized heel be suitable, Im only 5"3. Any suggestions. By the way, its a relegious school, so can't have anything too sexy