We go to the pool store and buy bags of pool salt. They save the bags that have holes in them or are otherwise unable to be sold for us and sell them to us at a discount, and sometimes give them to us for free.
Sometimes I'm able to scrub Cate's skin off after her salt bath, but usually it just softens her up a bit.
We put about 2.5 cups of salt in her bath every day.
Mama to Cate (1/30/08), our little monkey.
Collodian Baby/Lamellar Ichthyosis