In the past two years, I have been sober over 5 days twice. Both times I relapsed because I was in denial about being an alcoholic and both times I tried to moderate it, after the first drink I was a flat out drunk again.
As far as triggers go, haha umm almost anything.
Good weather,
making and writing music,
listening to music,
shooting pool,
cooking (yes that was a hobby making an elaborate meal and drinking a 6 pack before I was done and was not even hungry anymore)
Finishing homework
Finishing a workout - you worked hard you deserve a drink, might as well have not worked out.
Parties, Going out to dinner, Getting home from work
Drinking just became a compulsion, there was no logic to it anymore.