If you haven't done so already, you should invest in several different types of string rolls of varying textures and lengths to ensure you have the right kind of strings for different tasks.

Now for the video you've been wanting to see.

You may need to practice weaving string between two tree branches, but it shouldn't take too long to master this skill. Once you have it down you'll have a nice hammock to lounge on. When SHTF, having something like this at your bug out camp may be your own way to relax and catch a break!