Ladies, Go to the drugstore, and purchase ( I usually purchase 6 or 8) in Canada they cost about 1 $1.50 each) the fingernail whiting pencil, they are really cheap to purchase, and get yourself a small pencil sharpener to use to sharpen your white pencil, use this pencil to mark your dark fabrics....It works great and washes out with water. If you want it darker just dip the white pencil into water.....I have done this for years