I am a hand quilter and just finished a wedding quilt and wanted a huge heart and feathers in the center as my design. I found the pattern I wanted and took it to a local blue print copy place and had them enlarge it. I then traced my design onto washable interfacing , I used a little bit of glue stick to hold it in place. When I was finished with my quilting I just put it in the washer and everything washed out beautiful. I was a little leary of putting all the interfacing thru the washer so I cut out some of the larger pieces first. It washes up beautiful and you can also find the kind that is tear out if you are more comfortable with that. There are two different kinds, one is sort of plastic feeling on top similar to the press and seal and some are more woven which is what I used.