I use just plain small brown paper bags...the lunch bag type. I mark on the outside of the bag what is inside, fold down the top, but keep it loose. Then I store in a wooden cabinet that is away for heat and light source. The soap can breathe reasonably well this way, I hope. I avoid plastic, and of course, metal. I don't like to wrap my soaps in plastic when giving them to folks as I don't know how long it will be encased in that plastic before they use it. I use waxed florist paper for wrapping and then if I am being really fancy, I overwrap with handmade paper. I usually just leave them in the bags until giving them away. I don't sell.....but I have alot of customers."