To keep whites white Baking soda, vinegar, borax, lemon juice and hydrogen peroxide all naturally whiten. Add ½ cup of any of these cleaners to each wash cycle to keep your clothes bone white. For double duty, mix in ½ cup vinegar and ½ cup borax to your white loads. Both ingredients will help brighten whites, and the vinegar will soften clothes.
3 Ingredient Homemade Bleach Alternative / Whitening Solution - Great for cleaning all whites such as towels, bed sheets, tennis shoes, slipcovers, blankets, baseball and football pants, socks and more without harmful chemicals that can ruin your clothes and linens! via @Mom4Real