Cheap and quick set up.
DIY table cloth hammock (use search function for tons of threads about making them) http://www.tableclothsfactory.com/ta...shes-s/132.htm
Campmor has GTUL on sale for $18 http://www.campmor.com/outdoor/gear/Product___40705
some carbiners and poly strapping for suspension.
"Only two things are infinite, the universe and human stupidity, and I'm not sure about the former."
- Albert Einstein