If you have soft water, count yourself lucky. Soft water is water with a low concentration of calcium and magnesium, as well as other harsh elements. It feels slippery and lathers easily. You also won’t see mineral deposits on your pots and pans.
There’s a science to do your laundry. Many people don’t bother and just throw everything (unsorted) into the machine. They use cold water and shake in a random amount of detergent. These people spend more money and time washing their clothes than they need.