Natural Fat Burners

I know Coconut Oil is supposed to be a wonderful fat burner or metabolism burner and apples are great appetite suppressants, but does anyone else know of any great fat burners? I get alot of questions concerning weight loss drugs, fat burners and natural remedies and I am just about burnt out of ideas, so I am welcoming any comments on what has helped you? What have you tried? What didn't work for you and why do you think it didn't? Any comments would be greatly appreciated!