Back Up Your iDevice to Your Computer
If backing up your content wirelessly with iCloud doesn't make you feel secure enough, you can also store a local backup on your computer via iTunes. To do this, connect your device to your computer via a USB port and boot up iTunes (if you're a PC user, you'll need to download the software first). An icon for your device will appear in the upper left corner. Click on the icon and then select This Computer from the options listed. Now your device will automatically be backed up when plugged in. Even if you choose to continue using iCloud, you can manually back up to your computer via iTunes by selecting Back Up Now. Change the Card Associated with iTunes
If you use a credit or debit card to shop online—and most of us do—then you understand how tedious it can be to update multiple accounts when you get a new card. Luckily, you can change or update the credit card you use to make iTunes and App Store purchases all in one place. To change your credit card information, go to Settings > iTunes & App Store and then tap on your Apple ID at the top. A popup screen will ask what you would like to do. Tap View Apple ID and log in. You can then tap on Payment Information to update your credit card and billing information.
Maybe you're not ready to buy those songs you love in iTunes, but you do want to save them to purchase later. Well, in iTunes you can easily do that by creating a Wish List. To add a song to your Wish List, open iTunes on your computer and select iTunes Store. Find the song, album, or artist you want to add. Click the arrow listed next to the price button, and select Add to Wish List. Now you can view your Wish List any time you want by clicking My Wish List under your Music sidebar or on the iTunes store app on your iDevice by tapping the list icon in the upper right corner. Redeem a Gift Card in the iTunes or App Store
Although redeeming an iTunes Gift Card or using an app code might not be the most intuitive process, it's incredibly easy once you know where to look. First, scroll to the bottom of iTunes and tap Redeem. You'll be prompted to enter your Apple ID password. Choose to either scan your card or enter your code manually and then tap Redeem. Likewise, you can open the App Store and scroll to the bottom of the Featured tab page. Tap Redeem and enter your Apple ID password. Again, choose either to scan your card or enter your code manually and tap Redeem. Your gift credit will then be available to spend!