Good luck with the new business. It's great to see some Irish geeks!
Facebook is a great place to start - what is your FB page and I'll like it.
You should also consider the following:
1. Local free newspapers - could you send them a story on the salon?
2. Referral schemes - ask clients to refer a friend.
3. Notice / Flyer in your local shop, supermarket, shopping centre, library, GAA / sports club, school and church?
4. Are there any local events you could take a stand / stall at? Family days out? Wedding Fairs? etc
5. Are you close to any local businesses - you could offer them special neighbour prices / discounts?
6. Are there any hotels nearby that you could partner with?
I hope some of these ideas work for you. Good luck with it.