Ann Logan

Most designs supposed to be done using two strands of embroidery floss. But the floss is usually sold in six strand packaging.
So before threading your needle, you should separate all the 6 strands.
To do it just cut somewhat about 15”-18” (35 - 45 cm) of the thread. Hold it near the top with one hand allowing the bottom to untwist. Now pull each ply upward with the other hand. Carefully - one at a time.
Combine the necessary number of strands (typically two) and save the remaining for the next usage.

Try to buy all your threads for a specific cross-stitch project at once. Why? Because the embroidery thread is dyed in different dye lots. Hence even if you think that you get a specific color from a specific manufacturer, it can sometimes have a slightly different hue. Most times it is not that noticeable, but to be on the safe side, buy it all at once.