Take the rub rag and wring it out so that it is damp. Go over the horse from head to toe with the damp rag. Make sure to clean around the eyes and nose. This mixture works great in areas where horses can roll in sand and fine dirt. The fabric softener picks up sand and dust and the pine cleaner kills bacteria and helps to bring up a nice shine.
Some grooms like to add a little rubbing alcohol to their grooming water.
This lifts out the dirt and cleans the hair. Another mixture to try is a squirt of baby oil to the water, which leaves a trace of oil on the coat and helps to enhance the shine. Try any or all of these and judge the results for yourself. Take the body brush and starting behind the ears use long sweeping strokes in the direction of the hair to remove fine dirt and stimulate the skin. This will bring the natural oils to the surface which give you that great shine.