I'm a cheapie here, lol! I use a Remington Wet2straight straightener with a straightening/heat product from Charles Wellington (I THINK thats the name, lol!) and it works great on my hair. I get it at Drug Mart, I'm sure they sell it other places but that's just where I have always picked it up

Mine was super straight wouldn't hold a curl for the world growing up. Then during my 1st pregnancy it got a natural wave to it, which I hated!! With each following preg, (I have 3 kiddos) it got more wavy. I would love a CHI but that would mean I'd have to stop buying my furkiddos things w/ my extra money for a couple of weeks