i love my halo ecig it got me off smoking cigarettes for a few weeks now and i found the liquid more economical for me. Pre-filled cartomizers can be costly but fun to try different flavors of tobacco. So my question is can i use non halo liquid in my halo cartomizer?? and my second question is can i buy any other cartomizers at local smoke shops that fit my halo battery or i have to buy only halo cartomizers? thank you for any help!!