Like Security, like so many of these Tips, the Palm Pilot's Find app is a wonderful tool to know about particularly if you didn't know it was there.  So integral is it to the Palm OS's design that it is burned onto the screen's writing area, on the bottom right, right beneath the Calculator icon.  Its icon is a magnifying glass.  Tap the Find icon, enter a word or a name or a place or any word that you want to look for, tap the [OK] button and the Palm Pilot will find all occurrences of the word in all four of its Main applications, and in third party apps, too.