-Treat spots and stains as soon as possible. Use a warm water soak
in your washing machine for greasy, oily stains and a cold water soak for protein stains. Thirty minutes soaking time is sufficient, followed by a wash cycle to complete the cleaning. If the stain should remain, repeat the procedure before drying. 
-For best laundering results, be sure to add detergent to the washer before you add the clothes.
-Washers which move the water through the clothes instead of the clothes through the water, provide thorough cleaning with less wear and tear on clothes.
-The amount of suds in the washer is no indication of the detergent's cleaning power.
In fact, some of today's detergents are formulated to create less suds.
-Always use more water than you think you need, unless you have a front-loading
washing machine. If the load cannot circulate properly, the clothes will fray and will twist up around the agitator. This causes wear on the agitator seal, and consequently, oil spots on the load. Water is still fairly cheap...clothes and washing machines are not.
-Never purchase so-called alternative laundry products. Officially sold under names like: "Euro-Wash Laundry Ball", "Laundry Super-Globe", Laundry Clean-Ring", "Laundry Solution", and the "Laundry CD"!!
These are money-making schemes of the biggest nature, and none of their claims are substantiated! You would do as well to use plain water.