I drink alot of tea. Especially fruity ones, as that seems to help when I have a sweet craving.

Sugar free gum. Keeps the jaws moving.

Air-popped popcorn! The real thing, not Jiffy Pop, or the like. 1/4 cup of unpopped corn yields a big bowl of popped corn, and is only 120 calories (2 WW points). It really satisfies the munching craving I get from time to time, without much guilt.