Originally Posted by
Odd Man Out
I carry an automobile windshield sunscreen from the dollar store. The one I now have is a thin sheet of flexible polystyrene? covered with a silvery mylar? film. It can serve multiple purposes. In addition to sitting on, I use it as a floor for my tent vestibule. You can use it to block wind from your stove. It can be put under your sleeping pad to give a little extra insulation (probably not much, as they are very thin, but could give you the extra comfort you need). It can also help protect and inflatable sleeping pat from puncture or serve as an emergency (albeit minimal) sleeping pad if your inflatable pad is punctured. You could presumably use it as a signaling reflector (for emergency purposes). I have also cut one up to make a pot cozy. While these will keep you dry and clean while sitting on the ground, they don't provide much padding, if that is you main concern.