Many travelers have done it at least once. Before checking out of a hotel, they slip the complimentary shampoo, soap, conditioner, or lotion into their bag. Even people who already have similar products at home sometimes feel reluctant to leave these small items behind.
Psychology says this habit doesn't automatically mean someone is cheap or overly materialistic. In fact, behavioral scientists have identified several mental shortcuts that influence how people think about free items, ownership, and value. Hotels generally expect guests to use or take these complimentary toiletries, making the behavior a normal part of many travel experiences.
