I finally got my KGO and wow- what a difference from Blu! Since my Blus had an auto battery, I stored the cartridges separately from the battery. I filled up my first KGO cartomizer today, used it with the battery and I'm wondering now what? Do I just leave the carto attached to the battery all the time, or should I store everything separately? Eventually I would like to alternate between two cartos with diferent juices- what is the best way to store the one I'm not using (caps on, in a bag, etc)?