My First full week!

Although I have been on Chantix for 3 weeks today, today if my first week with out a single cigarette! The only time I really want one is when I am driving or talking on the phone. I havent figured out what I should do with my self when I am doing these things,quit smoking, any suggestions? I have found my self doing alot of differnt things to sub. for having a smoke,quit smoking now, except for those two things throughout the day. I am also having problems at work and im worried that the stess from the job will make me want one! Help!