A word of advice, unless you plan on sticking to dresses that have the same cuts and styles, you'll probably need a variety of petticoats. I have a small variety right now, and I definitely have a need for others. I use a classical puppets bell petti the most often, but I've added more a-line dresses to my wardrobe, so I need to add another a-line petti since the one I have right now is just too massive, if that makes any sense at all. Sometimes you want maximum poof. Other times, a good medium poof is more desirable depending on the dress, style, and the situation you are wearing it to.
herp to the derp.