When I'm working my long hair mainly annoys me and therefore I put it in a ponytail. I know that gets boring, but it's easy! And be honest with me, trying to create a cute hairdo when you're at work/at school is practically impossible...
This easy flip of your ponytail creates a subtile change to your look and probably takes you 5 seconds more than a regular ponytail, and if you take it a few steps further you can create a gorgeos updo as well!
