Cool Tools is great!
I'm from Canada so I don't shop on this site as much as I would if I lived in the U.S. But I discovered them almost 10 years ago and have always been happy with my purchases. I love their tutorials and their very personal customer service is the best in the online world. I don't say this lightly. Since starting to make jewelry 15 years ago and using metal clay for 12 of those I have had to do all my purchasing online.