After I have something to eat, I brush my teeth right away. That way after having a minty, clean mouth, I don't want to mess it up with anything like chocolate, or a salty snack. It just won't taste the same. And why brush your teeth if you're just going to eat something else, right? That also gives me time to get over the craving I have right after a meal, for something sweet to... 'top it off'.