Modern washing machines have a dizzying array of options. Many of us would prefer to press just one button and walk away—how many of us actually bother to read that online manual? But maybe it's time ...

High heat = heavy-duty drying. Use the “Regular” or “Heavy Duty” setting for sturdy items like towels and jeans. Medium heat = wrinkle-fighting. “Permanent Press” settings apply medium heat with a ...