So far there really isn't a sure-fire way to save a clogged or dying carto. But a lot of people believe the #1 reason a carto dies is because crud from the
juice eventually builds up on the heating coils enough to stop heating the
juice enough to vaporize. I have tried it all. Vodka, then boiling, has worked for me in the past.. But I only did it twice. Of those 2 times, about half the dying cartomizers came out working.
When I've tried JUST boiling them, they ended up taking so long to dry that I ended up just throwing them back into the dead carto box. I have heard some people say that they soak in alcohol, boil, then bake in the over or toaster oven. I haven't tried baking them after boiling yet, but I'm probably going to next time I run out of cartomizers

I'm hoping that will be the best method. The cheaper method might very well be just buying new cartomizers. Some of my cartomizers have lasted 2 days, and some have lasted 2 months. Most last a week to 2 weeks honestly. If I stretch one to two months, its because I have NO money to buy new and I have to go through a long period of having a carto that just barely works lol.
I see some recommending buying a small steam cleaner and it someone dries the carto quickly i guess? idk. I'd love to try it.