buy an air popper! they are soo cheap now.. i bought one for 10$ at walgreens. a cup of plain air popped popcorn is 31calories.. you can also add some of that(cant think of the name) but its a powdered butter flavor no cals.(look for it in the spices). or cinnamon and splenda .I am addicted to popcorn and I always have been ...so i like to munch on the 100calorie snack bags you can even get the cals lower then 100 by getting the snack pack 94% fat free!!! gotta love it! it is my afternoon snack...i eat that about an hr before i workout it fills me up but not to full! also the slim fast muffin bars are really good and filling and those are 140 cal