New rinsed sponges or old wash cloths cut into 1/4ths
Combine ½ oz of liquid fabric softener with a pint of water.
Put the sponges into the mixture and squeeze excess liquid out.
Let dry and store on top of drier.
Also, using 1/4 cup vinegar in your laundry's rinse cycle keeps clothes soft. You can set aside a vinegar jug just for laundry and add about 2 dozen drops of your favorite essential oil to the vinegar if you'd like.