Kelly at Families.com’s Unofficial Disney Blog points out some of the tips and tricks for maximizing your Fastpass use at Disneyland and Walt Disney World. For instance:
The Fastpass kiosks at Roger Rabbit’s Cartoon Spin at Disneyland and
Grizzly River Run at Disney’s California Adventure are on an entirely
different network system. So, it is possible to obtain a Fastpass for
one of these rides while already holding a Fastpass for another ride
Another fact is that the ‘end time’ for your fast pass ticket is just a suggestion. If you come back later than that Disney will still honor that fastpass for entry.
As far as I know there are no ‘off the grid’ fast passes at any of the Walt Disney World parks. However, strategizing how you plan to use your fastpasses can save you a lot of time, especially at a park like Disney’s Animal Kingdom. Right now Expedition Everest is the hot ride, so you have to get a FP there first. But Kali River Rapids will go fast too. Still that’s a great ride for the middle of the day, so get your second FP there. Then head to the Safari for the FP there. Finally, squeeze in It’s Tough To Be A Bug if that’s your thing, otherwize repeat. The fact that Expedition Everest has a single rider line too can be an interesting twist to your daily planning. If you don’t mind riding alone you can keep circling through every 20-30 minutes all day long. Throw in some judicious fast passing and you can get a lot of roller coaster madness in.