Ok, pretty trendy (from a blog), but, from Loney Planet’s Yomsemite National Park:
You’ll find few visitor services; for information and supplies, head directly to Tuolumne Meadows, where you’ll find an excellent visitor center, a good grocery store, and a post office.
Here’s the context:
- Grab the nearest book.
 - Open the book to page 123.
 - Find the fifth sentence.
 - Post the text of the sentence in your journal along with these instructions.
 - Don’t search around and look for the “coolest” book you can find. Do what’s actually next to you.