With your packed social calendar this summer, you'll be busy having fun hanging out with your best friends, drinking margaritas by the pool and dancing under the stars. Too busy, most likely, for precious, perfect braids and hair accessories that aren't called a "hat" or "barrette." But lucky for you, there are really only five hairstyles you're going to need in your beauty arsenal. We've rounded them up and given you some pointers on how to get them right. Practice, repeat, memorize. Now, go have the time of your life!