If you work in a sink, thoroughly scrub and rinse it first to remove any built-up harsh cleansers. Even simpler: Use a dedicated plastic or enamel washbasin or a five-gallon bucket.

Step 1

Fill the basin with warm water, then add a small amount of fine-washables detergent—some experts recommend as little as one teaspoon per gallon. Swirl your hand in the water for a few seconds to disperse the soap evenly before you add your garments. Put the lightest item in the basin first and use one hand to twirl it around in a circular motion. To avoid altering the garment's shape, don't pull or stretch the fabric or rub it against itself.