So I just ordered my 510. Eagerly awaiting it's arrival (hopefully tomorrow). It comes with 5 prefilled carts and I ordered a 5ml bottle of camel flavored juice. (I ordered Camel since that's always been my brand.) So I guess my question is, if I vape heavily, and use it as a total replacement for cigs, how long will 5 carts and 5ml of juice last? Should I already have more juice on order? When I placed the order, I didn't really know. Now that I'm learning more, 5ml and 5 carts doesn't seem like a lot.