6 months smoke-free today!
It definitely has not been easy. My wife started smoking again about a month or two into my quit attempt and it was extremely difficult smelling it on her and seeing packs of cigarettes laying around.
Also, I still have to remind myself several times a day that I'm no longer a smoker and have to force myself to stop thinking about it. This is usually brought on by the normal things that used to trigger me to go have a smoke (eating, driving, tv commercials, etc). Is it going to be like this forever? I hope not...