I'm on my way to quit for the third time. The first time I stayed out of smoking for 8 years (yeah, really stupid to start again, sh.. happends) the second time it lasted for over 4 years.
I know what to expect...3 weeks of pure hell. You think, dream, talk, eat, cigarettes, that is just the way it is.
I use strong minty chewing gums, don't want to use patches or other substitutes. After 3 weeks the cravings is really not that bad, I just need to stay away from certain situations where a smoke has been "a must".
A strong support from home (means hubby starts smoking outdoors *s*) and some space where you can be grumpy without any hazzle is great:-)
I'm not going to say good luck just... "Break the habbit" :-)