Thrifty - International - Caribbean

I'm renting from POS (Port of Spain, Trinidad) by the end of this month (May '08). I called Thrifty and they accept AAA (10%) discount for this location. Can anyone recommend any other discounts that may be used here.

I haven't combed through it to add it to the consolidated discount thread, but if you go to Thrifty.com and look for the link to "Deals" and then "Latin America," you should find a whole list, some of which may work in POS.