Apple's long-awaited iPhone was worth the wait for many. Its features can certainly make the lives of its users easier, but when the device's vast functionality becomes overwhelming there are plenty of information outlets. From official sources like Apple and the iPhone's service provider AT&T to third-party experts, there are many resources for tips on how to help the iPhone live up to its potential.

1. Restart an iPhone: To restart your iPhone hold the Sleep/Wake button down for several seconds. A red slide bar will appear, slide your finger across it to begin the shut down process. Once complete, click the same button to restart the phone.
2. Force Quit an Application: Hold the home button (the large round button on the face of the phone) for 6 seconds. This should force quit the application that is currently open. If it does not resolve the issue, perform a full restart of the phone.
3. Restore an iPhone: Connect the iPhone to your computer via USB and start iTunes. Click the iPhone icon on the left hand side of iTunes. Click the restore tab to begin the process. Please note this will delete all files and settings.