FB friend Pamela wrote me months ago about re-purposing an empty dental floss box as a cutter for your embroidery floss when the discussion of travel by plane and taking your stitching along arose. She suggested that I try using a dental floss box as a way to avoid getting one's scissors seized at security. So, I made sure to floss every day until I had an empty box to use!
It's a little bit tricky getting your embroidery floss in there, but once you do, it works great! The cutter can handle all six strands. Thanks Pamela!