Aside from English, Irish and maths I did music, French, art and chemistry. I did business studies until the Junior Cert but dropped it then. Although I didn't enjoy business studies I really wish I had kept it on as had I known that I'd be self-employed in the future it would have helped me greatly in terms of tax, loans, self-marketing and starting a business.
Essentially I am now running a small business by being self-employed. While I didn't use French and ended up living in Spain for 4 years I do feel having had a second language in school made picking up Spanish easier for me and I was really willing to learn it. Music of course has helped greatly in my career as there is nothing worse than a dancer who has no sense of musicality. Music has always played a big part in my life and many teachers have commented on my strong sense of musicality through dance.