Having super flat, non volymous hair, I have since somewhere in the middle of highschool almost constantly been curling my hair to get some texture into it. So much, that most people think I have curly hair while it's actually super flat. But of course, even after finding out about the wonders of heat protection, all that heatstyling damaged my hair baaadly.
So I found this about two years back, and I wanted to share it with you: sponge curlers.
I've bought mine for like 2$ on ebay. I roll my hair up when it's slightly damp and wear them to bed, and I wake up to bouncy curls. Today I rolled them pretty hard, all the way down to my roots, which gave me this super fluffy curly mess á la the 80's, but you can allso roll them halfway to your roots, looser, or put more hair onto each roll for way softer, more controlled curls.