So day 18 has dawned. Feeling much better today - more energy than for quite a while. Cravings have been much less frequent. I think that my biggest difficulty is when I am tired and bored and the day drags. Popping out of work for a cigarette broke the day up and somehow made it easier. But gradually I am getting used to the new routine. Tonight will be another challenge though as I am due to be out with a bunch of guys for a few drinks - quite a few of them smoke and we all know what the effects of the booze can be. My plan is to only have a couple and to stay resolute!