When I strip piece, I use a foundation of muslin, overcut so I can trim to the desired block size when I'm finished. Has worked extremely well for me. Plus, when you have the blocks finished, they are already quilted & there is no need to use batting. I call these "sleeping porch quilts" because they are lighter in weight and great for summer, warmer climates, or just cat naps. They're especially great for donation quilts too. If I don't have muslin for the foundation, I have used that "ugly, what was I thinking" fabric for the foundation. Give it a try & let us know how it turns out. Have fun & enjoy the process!