Min. maintenence schedule:
Wash at least twice a month,
out of direct sunlite using the two-bucket method (one for the car shampoo, and plain bucket of water for rinsing before reapplying the car shampoo water) and use
linear motions, do not wash in circular motions.
After each was wash, dry it completely or you'll end up with mineral deposits on your finish from the rinse water (some areas are worse than others in the country for water sources)
Use Griots Speed Shine quick detailer after drying the car. After you use this stuff once, you'll be buying it by the gallon, its that good.
Get a duster, as mentioned above, and give it a quick "once-over" on the sunny nice days after driving, takes about as long to do this as it does to check your oil, so do both!
Use a "Polymer-based" wax, that will give you elongevity vs. the carnauba-based waxes.