because of the nature of my work, i have to carry around an extra battery (at least until mbp battery increases to 6hrs of use) question is, how to carry it around without damaging it? it is sized about 5.5x4.5x0.5 inches. ive been looking for a pouch for it. something protective but thin enough to not make it to bulky, so that it can stay nicely in my backpack.. but no luck. for now i just put it in a nilon and put in the bag when going around, hoping it won't be broken too soon. if any of you could point me to anything like that, that would be much appreciated. thanks.