MY backpack kit, which is mostly kept packed for S & R, I have a simple military poncho. Easy to set up, rain proof, & has yet to let me down. In my jeep, I have a large tupperware container, with all kinds of stuff thrown in, depending on the season. I have a 10X8 silnylon tarp, that has survived as an emergency bivy a few times, while on exposed peaks in New England. Its nice having tie downs pre sewn onto points on the tarp. Beats having to deplete my cordage.