I thought of one more question, I live in Minnesota and its going to start getting cold, and I spend a lot of time outside at work.. even in the winter. Will the cold weather freeze the liquid and crack my tank? are there any special things I need to watch to make sure I don't mess up the ecig? temps get below zero and i'm out in it for 4-5 hours at a time... Does vaping even work when it gets that cold??
The biggest issue you will likely have is lowered battery life, so keep the batteries warm and in a pocket close to your body. I know this is an issue with recargable batteries.