Every photographer needs those shoots where they can just go out and experiment without having the pressure of pleasing a paying client...a shoot where you can just go out and try all of your crazy ideas with the mindset of "it's not a big deal if these end up not looking good." This is just one of the (many) reasons that it rocks to have your little sister at college with you because you can make her go out on a seconds notice to do a photoshoot so that you can experiment with newfound knowledge and photography accessories...and she ends up with free pictures for Instagram (haha).