Just a simple idea for today (excuse the sloppy-ness, I was in a hurry the day I took this):
I also like this one because it looks like and works as a headband, but you don't actually have to use a headband! Because this style is so simple I didn't include a tutorial, but if anyone wants that, just leave a comment.
Does anyone else over-use this style? Or, what is your favorite simple summer style?