Everyone loves a good life hack, where intelligent people remind us all that some of the simplest things we use in everyday life can come in handy when in a pinch. And this one that involves a rope to jump-start a car is genius—and should be used if you ever find yourself on the side of the road without jumper cables.

This is really amazing, and super useful. To think that all someone needs is a jack and a rope to jump their car is some of the best info I’ve been given in a long time. Hopefully, there aren’t too many of us who have to use this little secret very often—because, if so, it might just be time to get a new battery.