You say you're not accustomed to doing laundry? Or perhaps you don't know how to hand wash your clothes? Never used a clothesline in your life?
Walking the Le Puy route will teach many lessons. The norm is to wash out your attire from the day (wardrobe #1) upon arrival, and immediately hang to dry. You wear clean dry clothes (wardrobe #2) to dinner and possibly to bed, as well as the next morning. Be sure to collect your dry clothes off the line before retiring for the evening, lest a stray overnight shower undo your hard work.
Remember your will be in shared lodgings - could be 6, or 16, or 26. And there will be only one appliance. Often there is only a spinner and not an actual dryer -- but the weather is so warm and sunny that things dry very quickly anyhow.