Since 99% of what I do is appliques and tons of it I thought I would add my 2 cents worth. Most fabric I buy gets cut into fat quarters 18" x 22" (by my hubs, he's my cutter) ;) I fuse Wonder Under #805 to half of a piece of fat quarter at a time. I don't mess with one shape at a time, its too much trouble. I lay my fat quarter face down on the ironing board and then lay a piece of Wonder Under rough side against the fabric and press with medium hot iron for about 10 seconds. Then I just draw my design on the paper backing, cut out the shape, drag a pin across the back to cut the paper to remove the paper easier and peel....then press to your project. (just a tip, freshly ironed fabric sometimes doesn't peel well, thats why I like to keep alot ready ahead of time) I have a stack pre-ironed about 2 foot high organized in colors. When I need a piece its ready for me. But then again like I said applique is about all I do. Hope this helps. :)