Using a less popular airport to come into town.

Travel to Singapore
You can gain a lot of convenience and reduce your hassles by using a less popular airport to come into town. By utilizing an airport in a smaller town near by and renting a car, you get out of the congestion of traffic and can drive to your destination without that exposure to the masses all pushing and shoving to get through the major hubs.

Extra copies of travel documents can speed things up a lot especially if you are leaving the country. Often when you are going through customs, you must surrender your passport so the customs agent can make a copy. So you make a copy before you get there and give it to them. With a quick scan, they can confirm that it is a legitimate copy and have you on your way much quicker.