How to Naturally Straighten my hair?

Okay... I am a male with thick wavy/curly hair everyone tells me it is beautiful hair but I frankly don't like it and I was wondering how I could straighten my hair with out using chemicals or flat irons and i just want it to were I can actually fix my hair in the mornings because it is unmanageable( or i just can't get it to look right ) and I am willing to do anything that is not very expensive or chemicals I have actually tried chemicals it didn't work for my hair