Do you belong to a quilt guild or club? I save my sandwiching for club days. We keep two to three banquet tables pushed together just for that purpose. I ask someone who pins the way I do to help me. (Some in our club use spray and for reasons I won't get into here I do not use it.) If it is over a full size, I will get two or three to help and it's done in no time and I get to visit with my friends two!