I can't believe I waited so long to change out my quilting pins. I had used the same pins (the yellow tipped ones) for several years. The last quilt back I pinned to my frame took me forever and hurt my thumb. The pins were mostly bent and dull. The worst part is that I had 2 new packages of pins in my drawer. I tossed the old ones and used new today, what a difference! Pinning took half the time and didn't hurt.
When was the last time you tossed your old pins?