Castile soap just might be the greatest multipurpose product out there. One bottle of the stuff can replace your body wash, laundry detergent, dish soap, shaving cream and countertop cleaner, to name ...

Katherine Martinko is an expert in sustainable living. She holds a degree in English Literature and History from the University of Toronto. Castile soap (pron. ka-ˈstēl) is an effective and versatile ...