I checked a different JoAnn's - actually a larger one than is near me, and neither have the Connecting threads thread. But the bigger one does have the all cotton Gutterman's, so next time I get a coupon, or it goes on sale, I will get some.
Speaking of thread..... I hadn't thought about what color to get before - after doing a search I think I saw that most quilters use a neutral color - like grey?