Right now I have evolved to using Elmer's glue in sections on my protected dining room table. I have pin basted on the floor or on big tables when I have access to them. I have also thread basted on the floor or big tables. I tried spray basting but couldn't deal with the overspray and fumes. through all of this from my first quilting class we used Duct tape. For me it has never left any sticky residue on my quilts or on the surfaces. I also have a roll of masking tape one quilting teacher required. No problems there. Also have used blue painters tape. No problems with that either. Just putting in my 2 Cents worth!!