Instead of a tripod, you can always use a bag. I was thinking of finding something like an ice bag, so it has a wide screw top on it. Something light & rugged. Actually a homemade bag with a velcro side, zipper, or drawstring would work too. Fill the bag with sand or dirt and use it to set your camera on top of things, like rocks, logs, tree branches, etc. When done, empty the bag back out and pack it for the next photo shot. I've seen them sell bean bags for this, but who wants to carry the beans?