2 weeks for me on Monday... restless and squirrely but don't want to kill anything yet. Night is still young.
Bowels have settled down at least. Nicotine withdrawal wracks hell on your GI tract, apparently.
The thing that really made me want to smoke was writing. I wanted something to help steady my mind to concentrate, but the thought of actually smoking made me feel sick, so I'm resorting to coffee instead.