I'm a big proponent of carrying bright orange 55 gallon bags as multi-use items - preferably at least two of them.
They can provide shelter, provide a dry place to sit on the ground, keep gear dry, act as LARGE signal flags or trailer marker strips (when edges are cut off - can be written on with a Sharpie), carry water (if not abused), and even hold trash.
They are great multi-purpose survival items.
I bought mine from
http://www.spectrumbagsonline.comWelcome aboard XDriver!!