I suggested to a friend years ago that he keep all of hit used butts in a jar beside his bed. He came up with this idea that he should add some water to the jar.

The reminder every time he got up or went to bed that the black goop shit was the same stuff he was putting into his lungs every day eventually got him to stop. He couldn’t even look at the jar anymore — and certainly didn’t want to add to it. That thing was nasty.