never left anything in a hotel room...but did in a rental car. We put some pictures of us in the pocket behind the driver side seatjust to get them out of the way. Along with some really cool handmade Hawaiian luggage tags. Then boarded a plane to oahu. When we touched down in the airport I remembered...ugh. I hated loosing pictures. I am obsessed about checking the hotel before we leave. Everything gets turned upside down looking for our stuff. Believe me--i won't ever put anything in the pockets behind the seats in a car again!