i can control every single thing that happens in it, and thinking about that makes me happy. i mix the flavor up by adding in the flavor packs or by adding in fresh fruit to give me a extra boost. opening it up was a little harder, because the bottom flap is glued on by virtually its entire surface. but it can also be challenging from times to times! we take pride in what we do here, and this gave us a chance to see how we can make it better. i tried singing my favorite tunes, but nothing could shake this feeling of regret. 