In the laundry room, most of us are prone to overkill. We want beautifully clean, brilliantly white, soft and fluffy laundry. And we don’t measure. We pour stuff out of jugs straight into the washer, often adding a second big glug just to make sure. We use liquid fabric softener by the gallon and dryer sheets by the hundreds because there’s no such thing as too soft when it comes to towels and…