Lots of my clients use iPhones. I always encourage them to go beyond using such an expensive handheld computer as just a phone or camera. This PC World article “10 basic iOS tricks every iPhone owner should know” provides advice on this topic.

… some of iOS’s most useful features are, in fact, the oldest ones. They’re easily overlooked, particularly by new iPhone and iPad users.

Read on for 10 basic iOS features that every iPhone owner should know, like how to take a screenshot, the ability to long-press your way to draft Mail messages, a physical button that doubles as the Camera app’s shutter release, and more.

• Take a screenshot
• Unfreeze a frozen iPhone
• Take a photo with volume buttons
• Silence the incoming call ringer
• Type in all-caps
• Type characters with accent marks
• Shake to undo
• Jump directly to your draft Mail messages
• Create an event directly from a Mail message
• Put a website shortcut on your home screen