Early on I had the same problem. I needed to rewick almost every day and rebuild at least once a week. That doesn't happen any more. I got a gallon each of PG and VG, a liter of nic, and some mixing supplies, total cost $120, enough to last me 4 years. Then I made some unflavored liquid and diluted some of the pre mix 75% unflavored to 25% fllavored. After a few puffs it tasted just as good, may be better, and coil gunking was cut way back. The final solution was making my own liquid including flavoring. I use a conentrated Capella flavoring called cupacino at 1% meaning 1 ml flavoring per 100 ml of liquid. Basically tthere is almost no gunking now. I still rewick 2 twice a week and rebuild twice a month because i've found the best flavor and texture comes from a clean wick and build. A brother of mine uses my mix in his nautilus mini and says he gets weeks of use from one of those coil heads. If you are going to be a life long vaper you'll be mixing and rebuilding sooner or later. there are too many advantages.