In the useless but fun department, here is path-ladder. Basically it creates ladder steps between two paths, with a ton of parameters that I'm too lazy to document right now, but you are intelligent people who love to experiment. Basically it works like its cousin path-inbetweener: in the path list, you right-click on a path and you look for the tools submenu... The first option is a second path.

Available at the usual water hole.

Two ladders on the same pair of golden spirals, just changing the sides: (left/right for one first, right/left for the other):



Enjoy.