While there are a lot of household uses for white vinegar, it’s not always the absolute best bargain out there.
We’ll use the fabric softener example that Calista points out. As she mentions, it’s often recommended that you use one cup of white vinegar instead of fabric softener in a load of laundry. I often use half a cup myself, except on extremely heavy loads, and it seems to do all right in terms of making the clothes soft.
So, what does that cost? If you can purchase a gallon of vinegar for $2.39, and there are 16 cups in a gallon, you can do 16 loads of laundry with vinegar as the fabric softener for $2.39. That gives you a cost of 14.9 cents per load for white vinegar as a fabric softener.
More at source: CS Monitor