In Ireland deffinitely go by bus. I used my student card (ISIC) and got really good discounts!!
Been to: Argentina, Chile, Syria, Lebanon, Israel, Palestine, Jordan, Egypt. Greece, Turkey, England, France, Italy, Germany, Austria, Belgium, USA, Mexico, Spain, Monaco, Czech Republic, Ireland and Uruguay.
Next trip: Still pondering the possibilities for January 2009... * OH THE MYSTERY!! *
The travel bug is insatiable