Here is a tip I got yesterday at my fitting for helping your dress be poofy. My crinoline was one of those pretty big kinds, but the seamstress thought that it could be a whole lot bigger. She ended up slitting the outer layer (the cloth one) and one inner layer (a flat layer of tullle) all the way up. Because of that, the 2 layers no longer held the bottom tulle in and it was allowed to poof out more. If you are like me and need a ton of support for your dress, this might be a good trick for you.