Cool Way To Peel A Potato

I make potato salad a lot during the summer and grew up eating it because we made it for family functions.  We always boiled the potatoes, had to let them cool and then peeled them.  I was just sent a really cool video on how to do this, and I am gonna try it the next time I make potato salad. I must be living in the dark ages to have not figured this one out sooner.   So cool!