HARD-SURFACE-FLOOR FIRST AID FOR STAINS

When using any household chemicals, handle them with care and store them out of the reach of children. Never mix chemicals with each other or with household cleaning products unless there are
specific directions to do so. Wear rubber gloves when working with alcohol, hydrogen peroxide solution, household ammonia, acids, or chlorine bleach. To be on the safe side, it's a good idea to work in a well-ventilated room: Establish cross ventilation with open windows and doors and a window fan to exhaust air.
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   Caution: Never mix ammonia and chlorine
                         bleach.
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    Before using any chemical, test it on a small corner of the stain. If your procedure is wrong, the chemical damage will be limited to that one area. If you use steel wool on a stain, use grade 00 and rub gently. On wood, rub with the grain.
   After you have tried ordinary hand dishwashing liquid and  water applied with a rag or sponge---or a no bleaching all-purpose liquid cleaner sprayed from its container--try these suggestions to remove a variety of potentially stubborn stains.  Whenever possible, work on a wet stain before it has had a
chance to soak in and/or dry.
Alcoholic beverages. Try rubbing with a clean cloth dampened with rubbing alcohol.
Blood. Try clear, cold water first (before any detergent). If the stain remains, cautiously apply a solution of ammonia and cold water and quickly rinse to avoid discoloration.
Candle wax or chewing gum. Use ice cubes to chill the material to brittleness. Then, using a plastic spatula, carefully scrape the wax or gum from the floor. 
Cigarette burn. For heavy stains, try scouting powder and a piece of fine steel wool or a plastic scouring pad dipped in water. For hard-surface floors, rub with a cloth dampened with a solution
of lemon juice and water. 
Coffee or fruit juice. Saturate a cloth with a solution of one part glycerin to three parts water and place it over the stain for several hours. (Glycerin is available in drugstores.) If the spot remains, rub it gently with scouring powder and a cloth dampened in hot water. 
Dyes. After applying on an inconspicuous spot to be sure the floor will not be damaged, rub with a cloth dampened in a solution of one part chlorine bleach and two parts water. If this doesn't work, try scouring powder and a cloth dampened with hot water.
Grease and oil. Remove as much as possible with newspaper,  paper towels, or a plastic spatula. On resilient tile, rub with a cloth dampened in hand dishwashing liquid and warm water (or an all-purpose cleaner). On wood and cork, place a cloth saturated with dry cleaning fluid on the stain for no more than 5 minutes. Then wipe the area dry and wash with detergent and water.
Ink. Try a commercial ink remover, carefully following instructions, or use rubbing alcohol. It might be helpful to cover the stain with a poultice of diatomaceous earth and alcohol, cover with plastic wrap, and let stand overnight. 
Lipstick.  Try fine steel wool wet with detergent and water. If the floor is hard surfaced or has a no-wax finish, or is embossed vinyl composition, use a plastic scouring pad instead of steel wool.
Mustard. Place a cloth soaked in hydrogen peroxide solution  over the stain. Over that, place an ammonia-soaked cloth. Leave in place until the stain has faded, sponge with water, and wipe dry. Open your blinds or curtains for one to two days. The sunlight may fade residual mustard stains.
Paint or varnish. On resilient tile, use liquid or all-purpose detergent with either a cloth, a sponge, or fine steel wool very carefully applied. On a hard-surface floor, scrub with a concentrated solution of powdered detergent and water, or apply undiluted liquid laundry detergent.
Rust. Use a commercial rust remover intended for your particular type of floor.
Shoe polish or nail polish. If concentrated detergent solution doesn't work on resilient flooring, try scouring powder or steel wool. On wood and cork, fine steel wool should do the trick.
Don't use nail polish remover; it may soften resilient flooring.
Tar. Use ice cubes to chill the tar to brittleness. Then scrape the tar carefully with a plastic spatula. To remove the tar stain, apply a damp cloth wrapped around a paste made of powdered detergent, chalk, or diatomaceous earth, and water. Leave the paste on the stain for several hours.
Urine. After applying on an inconspicuous spot to be sure the floor will not be damaged, rub with a hot, damp cloth and scouring powder. For increased effectiveness, place a cloth soaked in hydrogen peroxide over the stain and cover that with a cloth
soaked in ammonia. Leave in place until the stain has faded, sponge with water, and wipe dry.
FINISHING TOUCHES
After you have successfully removed a stain, refinishing may be necessary. Rinse the area well and allow it to dry before you apply any new finish (polish, for example). The newly finished area should blend in with the rest of the floor within a day or two.