Oil is now nearing a 4-year low as the world’s economic crisis keeps on truckin’, says the Wall Street Journal. Light, sweet crude (don’t you just love that term?) is now trading at 44.56 a barrel on the New York Mercantile Exchange. “The price was the lowest since January 2005 and more than $100 below oil’s record close July 3,” says the WSJ. So, what does that mean for travelers?