I live in Patterson Lakes and rather than pay the $100 cab fare I either:
•Throw a carton of Duty Free Cigarettes at Son in law to pick me up,
•Take the train to Spencer St, then Skybus (actually quite efficient) for a total of about $20. (~30 mins longer than Taxi)
•For AM outbound Journies I hire a car from the city and drive it home. Then drive it to the airport in the morning. Costs ~$65 total (inc fuel & citylink) (Sometime do this inboud, but then have to lay off the HP's)