Straight without and iron? HELP!

I recently got my hair cut (it's not looking good but it'll grow) I have very fine hair and it's in a bob cut just below my chin. My hair is reallllly dry and i really want to stop using my straightening iron wince that's why i had to get it cut in the 1st place. I had so many split ends i couldn't take it anymore. If i don't staighten my hair with an iron though it seems it's always frizzy and unmanagable. Does anyone have any suggestions for getting is smoother without the iron? Thanks!

Just out of curiosity, what kind of iron did you use, and how often did you get a trim? That can make all the difference.