What causes your white clothes to become gray and dingy? Improper rinsing is the main cause! The residual detergent will discolor any white over time.
Rinse them a second time, adding a cup of vinegar to the water to remove all soap film. Or, use a Downy Dryer ball to release the vinegar into the rinse water automatically. Just pour in a cup of vinegar (instead of the Downy) and throw the ball in! This works so well that you may not even have to give the clothes a second rinse.
Not only will they will come out static-free, but fresh-smelling as well. A big plus is that it’s more natural than regular fabric softener and cheaper too!