Right now, there are some oddball opportunities to rent a car for cheap. Alamo, Avis, and Hertz have been advertising cheap deals ranging from $17 to $19 a day, before junk fees, if you can help them fill a need.
The rental companies are looking for people willing to move their vehicles from the Northeast and Midwest to Florida in time for peak vacation season.
It's certainly to their benefit because otherwise they'd have to fly paid employees out to do the same work. There may also be similar deals to reposition cars from the West to vacation destinations like Arizona and Southern California.
Visit Alamo.com, Avis.com, and Hertz.com to track down the deals.