Get an Enhanced Fastpass...
The original term for enhanced Fastpass was unlimited, but that was a bit misleading, since you can't really get as many Fastpasses as you want. What "enhanced" means is that you can simultaneously hold a Fastpass for each Fastpass attraction. For the regular guest, the expectation is that you will only have a Fastpass for a single attraction at any given time.
Currently there is only one way to get this special benefit. You must buy a hotel and admission package from AAA Travel. They are the exclusive sellers of the Enhanced Fastpass feature. That's right, you cannot get this feature from anybody else, even if you buy directly from the Walt Disney Travel Company.
First, you must buy hotel and park admission from AAA Travel. Of course, they would love to sell you reservations for air, rental car, meal packages, etc, but those are extras and not required. Second, you must stay at one of the three on property Disneyland Resort Hotels: the Grand Californian Hotel, the Disneyland Hotel, or the Paradise Pier Hotel.
When you first arrive at the park have one person in your group go get a Fastpass for every attraction that offers it.
Before you use a Fastpass, always get a new Fastpass for the same attraction.
For further details and strategy go to:
http://www.mouseplanet.com/misc.php?pg=fastpass