One of the easiest ways to transform your look is by switching up your go-to hairstyle. Of course, getting a new trendy haircut , like the "mixie" or the ubiquitous "octopus," will surely make an impact, but that big of a chance is not for the faint of heart. Nothing matches the ease and versatility of incorporating more looks, like easy hair buns, into your daily rotation. While you can always b…