Depends on what I'm vaping. Normally between 12-18 mg
Thats how i see it two 12 gets me by but i like having the 18 and 24 aroundStarted on 24mg and after ~4 months, switched to 12mg. After 14 months of vaping, I'm still clinging on that same amount. On occasion, when I'm feeling ultra stressed, I'll drip some 24mg.