I have 2 e-cigs, the smoke51 Trio (uses cartridges) and the vEppo510 (uses cartomizers) I am *very* happy with them both, but I was curious as to how long your cartridges/cartomizers last. I am finding mine last about 2 days (give or take). It's my understanding it depends on how much you use it, and when I was smoking ciggies I was about a pack to a pack and a half a day smoker. Does this sound about right? Thanks