Hello all, I'm sure this has been covered somewhere, but I can't find it. I'm wondering if there is a rule of thumb for how long a filled carto stays good. Does the juice evaporate out of the fill very quickly. I'm still pretty new to vaping, and what's working for me now is to just have a five pack of cartos that I fill and carry around. five last me about two days. I just put on a new one that I know was filled two days ago and the flavor seems to be gone much faster than normal. Was wondering if maybe some of the juice evaporated. The carto has only been refilled a couple of times so I don't think it's gone off. Any thoughts or personal experience welcome. thanks!