[color:"red"] Warning: Lye is a strong skin irritant and can do serious damage to mucus mebranes, i.e. nose, mouth, throat and private regions. Wear glasses and rubber gloves if you got em. Do not use the same pan/pot/utensils for making soap for cooking. In a bind, scrub the hell out of the stuff. Don't let this stop you from making your own soap. Avoid using a metal pot with lye unless in a well ventilated area. Outdoors is best. Follow those rules and you have nothing to worry about. The fat will bind with the lye and neutralize it. [/color] Filter water through cooled ashes from you fire pit. Wood ashes contain lye and the water poured slowly through them will absorb the lye. Then pour the runoff water containing lye into a pot. Boil and reduce about 75 percent. Add animal fat or grease and mix well. Once mixed, let it cool. Then scoop the resulting goop into some kind of mold/s. One of those plastic soap holders you might have had the original soap in before you ran out will work perfectly. Let is harden for a few days. Remove from molds to let all sides "breathe." Let stand for a week or even two weeks if you are in a humid region.

Now you have soap.

I am sure you can find more detailed directions online. It is a fairly simple process, but takes some time. But, if you are in a long term survival scenario, you got time.