Soap acid + base
Sulphuric acid + soda + tallow
Railway grease + glycerine
You can use any base and acid to make soap. It can be used in many applications. It can be used to clean, as well as, it can be used as a lubricant. In the olden days when windows where made of wood people would used soap in the side sills to help the windows to slide easier, zippers that function badly use soap for lubricant to aid in function. To cleanse the pores of the skin salt and tallow will help improve skin softness, as well as make the pores smaller.