JetBlue is offering a special which any traveler would be a fool to turn down. From September 8, 2009 to October 8, 2009, the airline is allowing unlimited travel to over 50 destinations for $599 + tax. This means you can go from New York to Cancun to Long Beach to Oakland to... you get the picture.
To be fair, most of the cities JetBlue travels to are in North America, but who cares? For one month, go check out sea to shining sea (plus a little Caribbean action) for half the cost of a new plasma TV.