KNOW YOUR SYSTEM. Try it out at home or in a short overnight. After tons of planning, I still end up modifying my methods constantly because things didn't work as I expect. On setting up a clothesline or paracord above the hammock, you can also tie it to the hammock at home (making it a "fixed ridgeline"), which means that you'll always get the perfect sag. It turns out that if you make a "finger gun" pointing gesture, the invisible line between the tip of your thumb and the tip of your index finger is just about 30 degrees. Good for getting the right sag in your hang. Similarly, learn how many paces you need between trees so that you can quickly measure the distance. I'm worried about HoughtonLikeTheLake's suggestion about using paracord to hang the hammock. Paracord is normally 550-600lbs strength, which is about the tension in a typical setup. In other words, it's normally fine but any given use could also cause the line to snap. Although it sounds like Houghton suggested braiding the line for strength? I use a closed-foam pad underneath because it's cheap and gives me a go-to-ground option. I've started putting it inside my sleeping bag to minimize having it slide around at night. Also, have a go-to-ground plan in case there aren't any good trees. Normally you can rig your rain fly from only one tree on the ground, and then you just need to think about wet/cold ground mitigations like a pad and/or small tarp. Pack for bad weather: if your rain tarp is packed separately, you can set it up first (to set up everything else in the dry under it). If you keep that rain tarp and your straps separate from the rest of your kit, they won't get your hammock, sleeping bag, clothes, etc. wet when you break camp.
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