There's a great recipe at this website, uses essential oils, sea salt, and almond or other fine oil. They call it "salt glow." I've used it and love it. One suggestion though: after you rinse off, dry with an OLD towel. You'll want to wash it in very hot water with some oxy-clean added. Worth it though. I keep a towel set aside for just this purpose.
Love to all
Gramz
http://www.care2.com/channels/solutions/self/278