Stick with it lad - 6 weeks for me now.
Brother just came in from the pub, and I was like, "man, you stink of smoke!" He doesn't smoke, but you notice it so much more.
To keep ya going, try this:
http://www.silkquit.org
This program totals up the cash saved, and how many fags it is.
One of my mates has given up and used this program - money saved from his 40 a day habit nearly covers his mortgage repayments