Hi: I am just new to this but I had my husband put up two 4x8 sheets of foam on my basement wall and I just use straight pins and in my blocks and sashings and borders. I can see what it is going to look like better that way. Don't have to get down on the floor or bend over for long times. I do the same for sandwiching. but I machine quilt to I don't have to worry about that.