For washing clothes: Grate down and add a tablespoon to your front loader and top loader directly to the load. Can be used in hot or cold water. Also great for hand washing where you can also apply directly to clothes.
For dishwashing: Grate down and add approximately a tablespoon to hot water. Stir vigorously to dissolve & create bubbles. Wash & rinse dishes as you would with any other dishwashing liquid. You can also apply directly to your dishes.
To make a cleaning gel: Add equal portions of boiling water to grated down soap in a container and let sit for at least an hour to allow the flakes to dissolve. This thick paste is great for washing kitchen and bathroom surfaces. Use as you would a usual household cleaner.