Also...
One thing to try is "Quest" cigarettes. They are a minimal nicotine based product and designed to wean. Supposedly (I don't smoke) they are so awful that one will quit rather than smoke another one.
zuki
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Yamaha 920 / Yamaha DGX-670 / Maui 5 Go (2) / Senn e935 / Sony C80 / Tascam DP24sd / ATEM Mini Pro switcher (studio)