I noticed the njoy kits and disposables at my local Hess station buying smokes for the first time. I thought "I'm stupid, I should try that"...next time. 2 packs of smokes later I showed up at the counter for smokes again and "give me one of those disposable ecig things" just came out of my mouth! It lasted me a day and a half for $8, when I bought it I took note of the rechargeable NJOY kit which I went back and bought. Then I met a chain smoking customer and showed him what I had, he pulled out a box of 510 stuff and told me not to waste my time and money and go "straight for this" holding up his eGo! We talked about the expensive NJOY carto refills and he gave me a bottle of ejuice and told me to youtube how to refill it. Both methods worked (condom and busting the bottom out), but I found a better way and haven't made a video. You put the condom thingy on the top of the carto where you draw from and work a set of pliers around it with modest pressure. When you'll break the heat seal they use when they press fit it in and you can stick a paper clip (with a tight little hook bent into the end) down into the hole. Pull and there you have it, comes right out. Drip into the carto, straighten the clip out to get the piece off the other end and pop it back in. Once you do this once you don't need to use the pliers again. I've converted my $15 5 pack of NJOY cartos into refillable cartos
Now I'm debating buying an eRoll or just a bottle of juice and quitting everything...