As I recall, I would top off a carto every ten puffs or so. Treat the polyfill like the soil of a houseplant; not too dry, not too soggy, just consistently moist.
Then I graduated to cartos in a
tank; most often, the Smoktech DCT with a single coil carto; 2.0 ohms for a 3.4 - 3.7 volt constant-voltage device. But even at that, I got tired of changing cartos every day or two, and collecting them in a big pile that "i'll clean one day".
Now I use the Vivi Nova 3.5ml version 2.5 tank/atty ($14) with the variable voltage eGo-C Twist ($18-23), while my more expensive and fancy stuff sits. Highly recommended.