I help my sweet tooth out by drinking the sugar-free drinks you can put in a bottle of water (or a glass of ice and water for me). They have no sugar, no calories and taste very good. I'm having a raspberry lemonade one this morning, but usually this is my night time drink to help me from eating.
They have all kinds of flavors so you can have a wide variety and not get tired of them. My favorite is the cherry limeade - which is the Wal-Mart brand one.