This is a way to shorten rope that my friend and I came up with while we were at a scout camp.
It is a chain of slipknots that will come either come undone when both ends are pulled simultaneously or stay together when the end is knotted
(This is my first instructable so be vicious with what i could improve)
Step 1: Materials
All you need to do this is a length of rope that you want shortened and about 5 to 10 minutes of time depending on the length of the rope