Not all safety pins are created equal

So in the process of basting 4 large quilts, I ran out of safety pins.  Since my daughter and I were out running errands, I let her decide between the craft store or usual fabric store.  That resulted in a long stop at the craft store and me buying an off brand of safety pins.  Not a problem until I got back on task and tried to use them to baste the quilt.  They wouldn’t go through the fabric.  #!@%!* Not wanting to throw away boxes unused pins and start over, I decided I when try to sharpen and use them.  All it took was running the point of the safety pin down a course nail file.  Like magic, the pins were gliding through the fabric.  300 pins later, I think it’s time for a new nail file!