How Much Of P&G's Ariel Laundry Detergent Should You Really Use?

How Much Of P&G's Ariel Laundry Detergent Should You Really Use?

Here’s a quick quiz: If you use Procter & Gamble’s Ariel USA laundry detergent, should you use 1/2 cup, 1/4 cup or 1/5 cup of detergent for a medium-size load of laundry? [More]