Being a "sewer" for nearly 60 years, I have bought a lot of thread. The only problem I have had with any of it was when I started to make a quilt for my gs. I decided this was a chance to use up some of my odd/ends thread. BIG MISTAKE. Some of the tread was really old, had been exposed to sun light, etc. After the quilt was all done, I gave it to my dgs, who was about 16 at the time. He loved it, and put it on his bed. THEN one by one the seams all began to come apart. I have spent many hours hand stitching that quilt. I now only use FRESH thread!!!