Just stumbled across this tutorial on YouTube. If you have enough time on your hands, and hair you want to be extremely careful with then it may be useful. I found it interesting that you could do this. Makes me wonder if sitting next to a fan with rollers in would curl it for you faster without heat too, seems like it would take much less effort than straightening. Think I will attempt it when I next have my hands on a fan.
My hair always goes so frizzy, especially at the top even after straightening, so I think this method might aggravate that.