When you get more stuff on your iphone: like "music, video, photo, note, app, & games..." and anytime you syncing the iphone to add more stuff, the Itunes will take a lots of time to backup your iphone. So this tutorial will help you stop that problem.

1. Quit iTunes.
2. Open Finder => Applications => Utilities => open Terminal.app
3. Type (or copy & paste) following command:
defaults write com.apple.iTunes DeviceBackupsDisabled -bool true
4. Hit enter\Return
5. Open & run iTunes
6. Plug-in & connect iphone to computer for syncing. The backup process should be bypassed and skipped now. Now you'r good to syncing.

To re-enable or turn on the backup of iphone again.
1. Quit iTunes.
2. Open Finder => Applications => Utilities => open Terminal.app
3. Type (or copy & paste) following command:
defaults write com.apple.iTunes DeviceBackupsDisabled -bool false
4. Hit enter\Return
5. Open & run iTunes
6. Enjoy.

Here is an example

4. To remove the Widget from the desktop and return it to the Dashboard, perform the actions in Step 4 in reverse order. Click the Widget and enter "F12" or "F4," then drag to position the Widget in the Dashboard. Release the mouse.

• Click the Power button on the top right corner of your iPad, and while holding it down, click the “iPad Button”.

• You’ll see the screen ‘flash’ white and hear a camera ‘clicking’ sound. Now open the Photos app on your iPad.

• You’ll the screenshot you just took as a thumbnail. Tap that photo to view the screenshot.

• 
• That’s it

• 1
  Find an image, you can pull one of a search engine, or an email, or a photo from your camera.
• 2
  Save the image to your hard disk. You can do this by dragging it to your desktop in many cases.
• 3
  Open preferences on your mac and go to "Desktop & Screen Saver".
• 4
  
  Press the + button in the lower left. Select the image on your hard drive.