A simple yet elegant lighting system used for when camping and you are short on propane lanterns. I also have an inverter and a speaker system hooked up, for camping "necessities".
All is powered off a deep cycle 12 volt battery I got cheap at Costco.
The battery lasted almost the entire 3 night camping trip, pretty impressive considering we ran the speaker all day long, and the lights burned into the wee hours.
Step 1: Run taught support wire between trees
I happened to have a decent sized spool of steel wire laying around, so I cut it in half, then tied 2 ends to a length of twine and wrapped it around one tree. I then took the remaining 2 ends of the wire and wrapped them around some nails I had implanted into a tree on the other side of the campsite. I tied them around a couple pieces of firewood to provide tension on the lines. I wrapped one of the nails in a couple layers of electrical tape to prevent voltage leaking into the tree.
Step 2: Wire it up
I initially hooked up the jumper cables directly to the steel wire, but I found out it offered WAY too much resistance to run anything past a couple of feet. I needed some copper to run along the steel support wire to provide a better path. I had a spool of wire on me that happened to reach most of the way, so I sliced it in half, and peeled back the insulation in about 10 spots per run to attach to the steel. For the remaining length, I had a piece of lumex about 7 feet long to make the remainder.
So the run was battery>Jumper cables>Lumex>copper wire & steel support
I also wrapped one of the jumper cable ends in electrical tape to prevent shorting (I have yet to install all this into a box with a fused distribution block)