I saw this one on a channel 4 weight loss show and it seemed interesting (easy). Basically, you drink a tablespoon of olive oil twice a day in a window. It's supposed to suppress appetite. The tester did pretty well (comparable with the results from other, harder diets).
So I'm going to combine it with weight watchers and see how it goes.
I took the olive oil yesterday and I'm not sure whether I could say it has started suppressing my appetite but I actually feel very good.