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This document discusses the idea of a tool that would allow people to announce when they are traveling and need someone to housesit or pet sit for them, or when they have an empty home available for someone else to stay in. It notes that people often struggle to find housesitters or places to stay through informal social networks. The proposed tool would automatically share travel plans and availability between friends to help match housesitters and guests. It suggests features like calendars, maps and notifications to help facilitate houseswapping. The document argues this could save travelers significant costs compared to hotels and support local businesses if more people opted to housesit and host guests.