Re: Just curious...
1) Almost every day
2) I don't know. I have some that is almost 3 years old and smoking perfectly.
3) Do not put it in the fridge, it has a natural ability to drain humidity causing the tobacco to dry out over time.
4) If there was a problem they wouldn't be on the market long. I don't use them but someone must be for them to keep selling them.
5) Never, next question?