Quite often in the store I describe exactly the setup I have for my camping gear and bugout bag, so often I decided to put together the same set and offer it for sale. This is the same setup I use and recommend to people in my store. It has:
1 Woodland Camo Multipurpose Survival Tarp
1 Nite Ize Figure 9 Tent Line Kit
4 Tent Stakes
1 MOLLE SAW Pouch, perfectly sized to hold it all
This set has all you will need to rig a quick and easy shelter. It goes up much faster than a tent and is very adaptable to many situations. You can cut sticks to use as poles or just hang it from trees, or both.
This set is designed and tested by us here, and it is what I keep in my gear. And if you have 2 or more people carrying these they can snap together to make even bigger shelters.