Here are some useful links to help you with you Apple products:

 What is an Apple ID?

Get help with your Apple ID

Check your warranty status

How to backup your iPhone, iPod touch, or iPad to iCloud

How to restore an iPhone, iPod touch, or iPad from an iCloud backup

How to backup your Mac

How to get your iPhone, iPod touch, or iPad ready for repair

How to schedule a repair at an Apple Store or Authorised Service Provider