How much soap is too much soap?

Modern appliances have become more efficient over the years and so have the soaps we've been using to wash our clothes and dishes.  Yet, many people have not made the adjustment and are using 10-15 times the necessary quantity, according to an appliance repairman interviewed by the New York Times.  In the financial section, they highlight a small, but frequent way to save some money or your detergent bills.  Simply put, it's save some soap.

Read the article here. New York Times