Hi Zencat, those are exactly the methods I've been using!
I see those urge messages coming from deep within my brain (down near the instinct driven reptilian hand-me-down bits) and I have to fire up my rational I can think for myself and control my own destiny cerebral cortex to drown out the urges.
The negative image I chose was to replace the tempting image of a cold frosty beer with the saliva dripping blank eyed stare of a Komodo Dragon. Ever see that documentary where one bit the leg of a water buffalo, which then got blood poisoning because of the virulent bacteria in the Komodo's mouth? It took the buffalo a week to die, and the number of Komodo's following it kept increasing all week. In the end, they ate it alive when it became too weak to fight back.
One bite, or one drink is all it would take to set me off on a drunken path towards an ugly, early death.
Pretty slick negative image, eh?
Murray