Have sex WITH booze. Innovation.
Melatonin is magical but I don't have much trouble sleeping these days because I FINALLY have a fairly stable schedule and I just go to bed at the same time every night.
I play Disgaea because the sheer scope of that game makes me dizzy and I pass out.
Another good one: Start mentally reciting something you have memorized.
Weird Al's "Albuquerque" usually has me knocked out within eight minutes.
And by the way if one day you happen to wake up in an existential quandary full of loathing and self-doubt and racked with the pain and isolation of your pitiful meaningless existence, at least you can take a small bit of comfort in knowing that somewhere out there in this crazy old messed up universe of ours... there's still a little place...
CALLED AAAAAAALLLLLLBUQUERQUE