How to Use Vinegar as an All Natural Fabric Softener Vinegar as an all natural fabric softener is a great way to make a eco friendly change to your laundry routine. White vinegar is one of the main things I rely on in my laundry room! It is an all natural fabric softener that can replace the need for other kinds of fabric softeners sold in stores. Commercial fabric softeners can be costly and contain a lot of unhealthy chemicals, which are a ...