Outdoor shower mat? May 7, 2025 at 12:40 pm #52284 Tory JonKeymaster Joined: Nov 2019 Posts: 597 Likes: 827 LikeUp1:: I’ve seen people use a small blow up kiddie pool, which would store nicely. Dollar Tree has them for like $5. Or you could use a rubber boot tray, and just dump the water out of it as needed.