After guests leave a hotel, they have not parted ways forever. The hotelier cannot afford to lose a former guest, who, if the service he received during his stay met his needs, could become a repeat guest in the future. One of the things the hotelier needs to do is provide the guest with useful tools to develop loyalty. And for that, new technology once again offers solutions to be sure not to miss the boat and be available for this clientele. Saving guest data and putting it to good use are now the primary challenges faced by hoteliers in their quest to increase customer loyalty and satisfaction, which generally go hand in hand. To do that the guest’s loyalty must be nurtured by studying his stay’s strengths and weaknesses, in order to create a trusting relationship with him. Today’s new technologies are a tool that is nearly indispensable to the analysis of customer satisfaction, and the programs for contacting them after they leave prove to be necessary.