What kind of hair product can help keep my hair in place, and not stick back out after straightening?

I blow dry my hair straight in the morning, then take a straightener to help it lay down. I have naturally wavy hair. Halfway through the day, or in the heat especially it starts to stick up.. NOT go wavy but actually start to flip out the other way and needs straightening again. Are there any products that can help my hair lay down and look good through the day??? I really have not had any luck with hair spray of any kind. I hate the way hair spray makes me feel like a helmet head. But I need a product that will help mold and/or keep it in place..