I know 100% what you mean!! hahaha
I also have wavy hair myself. I mostly style them with my flat iron.. but these days I like to use my hairdryer too ^__^
You'll need a round brush for it though!
Make sure your bangs are toweldry and blowdry them while using your round brush.. jsut don't overdo it!! You might get a really poofy fringe XD
After that, I use some wax or foam to make them flat. Or I do this after taking a shower.. even at night!
Sometimes I like my hair more when i blowdry it and go to sleep.
(the next day it looks natural flat ^^)