I’ve been listening to a bunch of Disney World podcasts lately, and picked up an interesting tip from one of them yesterday – though I can’t remember whether it was Betamouse or Be Our Guest podcast from which I got it. Either way, the tip is that if you’re in the parks and find that your camera battery is running low, head to the park’s camera center. If you ask at the counter, they have chargers for most common digital camera batteries and will charge you up for free.
Edited to add: I finally figured out where I got this tip. It wasn’t from a podcast after all. It was posted in the forums over at the (subscription required) Tour Guide Mike site.