Opportunities abound to stay for free at someone's home or apartment while they, themselves, are on vacation (often pet sitting or plant-watering are the only requirements)
Opportunities abound to stay for free at someone's home or apartment while they, themselves, are on vacation (often pet sitting or plant-watering are the only requirements)
Sleep for free on vacation by watching someone's house (and, often, watering their plants and feeding their cat)
Windsor Castle is the oldest royal residence in the world still being used by a royal family.