I have tried almost all of the methods here and it's just too much work but I can't throw away something that might still be useful.
Since January I have bought about 1500 cartos and have tossed about 100. Currently, I have about 900 used cartos collected and am planning to try this method:
Soak in hot water 15 minutes, rinse and resoak.
Soak in PGA if I can find some, rinse and resoak in water.
Boil to get rid of any remaining alcohol
Place battery end up on paper towels and leave them there for a week.
Take a drag off of the dried ones and if they are difficult to drag off, toss them, otherwise save for the next refill session.
I probably won't do this too soon because I like fresh cartos and hate dripping. I'm a little on the lazy side and it's easier to go to the 7-11 and buy a pack of cigarettes if I get that desperate.
For PGA what about using Everclear, is that what it's called? It's pretty high proof stuff. I think we use to drink that in College mixed in Punch, we called it Trash Can Punch 'cause we mixed it in a dorm room trash can, yes we did use a trash bag liner! A couple of these and you were done for the night!

BTW Loner, what's your Fav Vapes since you have tried so many??
Why smoke when You Can vape!!
