Waist-pack all the way! Seriously though, Jansport makes some killer ones called "Fifth Avenue Pack" and they come in a large variety of colors. They're the perfect size for my iPhone, wallet, keys, and portable charger. I've even been able to fit a peanut butter sandwich in there with some baby carrots on top of all my usual park stuff! I will shameless promote waist-packs to no end. My friends make fun of me for how attached I am to mine... but honestly, convenience and comfort should always win out when it comes to 12+ hour days at a theme park (I think they're super cute anyways)!