Originally posted by: skyking
I did not do this as my wife is not as adventurous as me, but here is my suggestion:
Get off the plane and head south on the bus. After you get about 50 miles south, things start to get nice. Go looking for a beach bungelow from a private party, somebody that only has a few. Negotiate a long term rental.
Go to internet cafe' and let select friends know how to get a hold of you. They come visit, pay the rent, hang out. Not exactly profit, but good times

I have talked to folks who have done that. Don't expect phone or TV, or maybe even AC. It is still pretty nice along the beach though without it.
You speak Spanish?