BASIC BATH SALTS      3 parts Epsom salts      2 parts baking soda      1 part table salt (or borax)      Essential (scented, herbal/floral) Oils 
     Mix thoroughly using your hands to stir the ingredients. When  making bath salts place the Epsom salts in the blender and pulse several  times to get a finer grind and your bath salts will dissolve quicker.  Some people will tell you to use a spoon or other utensil, although if  you are like me, you will find the salts work better if you use your  hands. This is now the base from which you can create a wide variety of  bath salts. Its wise to add colors to bath salts. Use plain food coloring for this purpose, letting it fall drop by drop onto the salt  base. 
     If two or more colors are required to mix an exotic hue (such as  purple), mix these in a spoon first and then add to the salts to avoid  creating a two-toned product, unless of course, you plan on a two or  three tone salt. Add many drops for a darker colored salt; fewer for a  lightly hued salt. Mix the color into the salts until it is evenly  distributed; again use your hands or you may use a utensil. 
     Now add the essential oils drop by drop, one ingredient at a time,  until the scent seems right. using your hands and fingertips, mix it  until all salt particles are moistened. This may take up to fifteen  minutes or longer. As to proportions, rely on your nose to determine the  exact quanties. The more potent the finished products' scent, the less  will have to be used for each bath. They should be strongly scented.  
     To use, add from 2 tablespoons to one-half cup of the bath salts to  a full tub. Mix with your hands into the water. Enjoy your homemade bath  salts