After two weeks of keeping the fabric softener dispenser filled with white vinegar instead of softener, I’d absolutely do it again, but with a little selectiveness. For towels, sheets, basic clothing, and sweaty summer laundry, I think vinegar is genuinely useful. It reduced odor, cut residue, improved towel absorbency, and helped my washer stay fresher.
I won’t say it replaced fabric softener in every situation, because for some fabrics and for people who love a strong laundry scent, it simply offers a different result. But in my home, that different result was often better. My plan now is to keep white vinegar on hand as my regular rinse-cycle helper for most loads, especially in summer, and save specialty products only for the few cases where I really want that extra softness or fragrance.