The report highlights the importance of managing corporate travel spend to reduce costs and increase savings. It states that up to 45% of travel spend is on traditional categories such as air, hotel, car, and rail, while up to 26% of spend is hidden and unmanaged. The hidden spend category includes dining, entertainment, and transportation, which can be managed by encouraging travelers to use public transportation and restaurant programs, and by leveraging mobile apps to access travel data. The report also emphasizes the importance of new technology in making travel management more visible and accessible.