I generally use white vinegar in the final rinse for everything except pajamas/underclothes. (I use the Downy Simple Pleasures lavender and vanilla- yum!- very sparingly to make it last) I gave this recipe a try and it works well. I need to find a better scent though.
3 cups distilled white vinegar
6 cups of water
1 bottle of hair conditioner- supposedly ocean scents smell the best. Haven't tried it yet. I had a bottle of 'milk and honey' scent. It's ok.
Mix ingredients together and use as you would regular fabric softener. I mixed the conditioner with the water using a whisk first to smooth out the lumps. I poured everything into a large vinegar bottle because I had used the rest of it in the recipe. An old fabric softener bottle wouldn't work because it wouldn't hold it all. Finding the right container could be tricky, but the vinegar bottle works great since it's large enough to hold the liquid and has a handle.