Thanks to Jenny from Jetsy for the following tip!
I highly recommend that people wear their own jewelry. You will learn so much about your craft if you see what your customers are getting. Someone gave me a bracelet she had made, but she had no idea that the crystals on it scratched like crazy or that it was impossible to clasp without an extra pair of hands. I know another artist whose charms continuously fall off his jewelry because he only uses one jump ring to attach them. These are things the makers would realize if they gave their own pieces a spin.