I love these elastic hair ties by Mane Message, another fantastic Etsy store.  I have a bunch of these in my bathroom, various purses, a drawer at work, my car, etc.  They are great because not only do they look amazing, but they hold your hair up without slipping or loosening, they don’t crimp your hair (somehow…because honestly, I’m still mystified by this), and they look great on your wrist as a bracelet until you’re ready to use them in your hair.  At $7 for a (beautifully coordinated) set of 5, it’s a great deal.  And don’t get me started on the headbands!  They are awesome and really help keep flyaways out of your face while working out.