Anything with a sweet taste is a 'trigger' for me and can lead to massive overeating. So when I get a craving for something sweet at the end of a meal (happens frequently), I have either a cup of black coffee or plain green tea. Somehow that satisfies my urges.
If not, I just 'white knuckle' through because I know that giving in just reinforces a bad habit. Since I've been in the habit of ending a meal with a hot drink, it tends to be satisfying 99% of the time.