Summertime hair sadness? Yes, it exists — when you fall into a rut with your tresses. Avoid it and plan early this year. What's your summer hair mantra? Short and sweet, long and loose — or somewhere in between? If you're still figuring it out, listen up, because we have 21 great ideas for the coming months. Stealing cues from our favorite celebs and the spring runways, we've gathered the best bets for your summer hairdo. See below and let us know which pic you're printing out to bring to your stylist.