I was just reading in another post about having backups. I just recently purchased the Blu Cigs with the new cartomizors. What all should I have for backup? 
I think Blu is a 510 model. If that's so, then just buy back ups from whoever has the best price. If you are determined to quit and want to make sure you don't need to turn to cigs in case of equipment failure, just buy a whole new 510 starter kit. You can usually pick one up for around $35. That's usually cheaper than buying batteries, charger, and attys separately. And that way you have the security of not having to wait 2-4 days for delivery in case something happens.Would it be better to look into extra batteries from Blu or should I buy a whole new kit from another company?