I have a Kangertech emow. Depending on the e liquid I use, I'm getting about 4 -5 days out of a coil before it no longer produces vapor. I've read that some people are able to get a few more days out of their coil by rinsing it in hot water. I've tried that, but it doesn't seem to work for me. I've also read that some will soak their coils in vodka. I'm not a vodka drinker, so buying a bottle just for that purpose would be a waste of money. Is there another method I could try, or should I just not worry about it and throw them away when they no longer work? It would be nice to get a couple more days of use out of a coil, but buying a new pack of coils once or twice a month is definitely far cheaper than a carton of cigarettes once a week.