Don't think Dubai is expensive everywhere! In fact, Dubai also has many low-income groups, so it is not expensive. For example, public transportation buses are more affordable! 24-hour Chinese explanation, mineral water, attractions are all there. Outside the first terminal of Dubai Airport, you can take 401 or 402 to the city center, every 30 minutes, 24 hours service. But you must remember that you need an airline guarantee to get a 96-hour transfer visa!