Do you tend to wear out the heels or toes of your socks? This may be the answer for you. Simply carry this yarn with your sock yarn in those areas that get the most wear. It won't change your gauge much while adding a lot of durability.
Or maybe you have a hole in a favorite garment? This yarn can be used for repairs and mending too. Too skinny to match the project? Double it up. Use multiple strands if needed to match gauge.
