Here's a short, handy tip for sorting your iPhone or iPod Touch app icons in alphabetical order for people who find comfort in an alphabetized world.
1. Launch the Settings app
2. Tap General
3. Scroll down and tap Reset
4. Tap Reset Home Screen Layout
Your app icons will be sorted as follows:
- All standard Apple apps will be placed in their factory default locations.
- All remaining apps will be sorted alphabetically.

On an iPhone or iPhone Touch with more than 180 apps, the 11th Home screen will display the last app that is visible. In my case this is the app Urbanspoon that starts with the letter "U. " I cannot directly access apps on the 12th Home screen or any after that, but I can use Spotlight to find apps beginning with the letters U through Z that display on these hidden Home screens.
Simply access Spotlight and type one single letter from U-Z and the apps with names that start with your selected letter will appear in the search results. You can launch the app from those search results. If you don't know how to use Spotlight, see my tip on how to Discover Spotlight searches.