You can use beeswax to coat your thread before using it for sewing or embroidering. It helps reduces static cling and prevents tangles and knots. Beeswax is very easy to use and is known to make the thread stronger. Just pull the entire length of the thread along the notches two times. Then, drag the thread between your thumb and finger to remove any excess wax. You can find this product in most sewing shops, and it comes in a circular plastic disc with notches where you can pull the thread through to gather wax. Some crafters use beeswax with caution because it can stain the fabric. Using beeswax on a white thread may cause it to look grayish as some dust or dirt may cling as you embroider. It is not advisable to use on a black thread because it may leave a residue that will not look good on your embroidery.