I pin baste all my quilts. Got tired of the smell and overspray. I have a folding table and use clamps like WMUTeach showed. Once I pin the center section I unclamp and move over to the next section until all is pinned. Never have puckers or wrinkles and don't worry about things coming undone if I have to wait to get to the quilting. Also the pins make me slow down and readjust my hands and quilting area.