Even though the addition of the front-facing camera on most smartphones has eliminated the "selfie arm," there is another way to snap the perfect self portrait using your iPhone's headphones.

To take a picture using your headphones, just aim your phone and push the + button on the your Apple earbuds remote while the camera app is open. You can also use the play/pause button in the middle of the remote to start and stop recording video when in video mode. Of course your headphones will need to be plugged into your device for this trick to work.

Now all that's needed to buy an iTunes gift card is a PayPal account. The online payment service has launched a new feature called PayPal Digital Gifts, with iTunes gift cards as its first product offering. Of course, when buying a gift card the cost is immediately debited directly from your PayPal account.

The iTunes gift cards are available from PayPal in $15, $25, $50 and $100 denominations, except that $15 and $25 cards are currently sold out. When purchasing the cards there's an option to "Buy for Me" or gift the cards for someone else. Keep in mind, however that the cards are only valid for purchases on the U.S. iTunes store.

Now that biometrics has made its debut on the iPhone 5s, it's only a matter of time before Apple integrates more of this technology into future devices. Touch ID has successfully integrated a fingerprint sensor into the iPhone, simultaneously increasing security while simplifying the user experience. Now a patent uncovered by AppleInsider points to Apple's work on facial recognition.

The patent was filed in 2008, and describes a system that would control a computer or iPhone using face detection and recognition. The idea would be along the same lines as Touch ID, increasing security for the user's data while improving productivity and convenience. Capturing a facial image would be accomplished with an image sensor, or this could be done with the built-in iSight cameras on current model iPhones, iPads, and Macs.

Zagg's Cyber Monday sale is now live. The iPhone and iPad accessory maker is offering up to 50% off its popular screen protectors and iPad keyboards. The sale begins today and ends on Tuesday night. This is a great chance to buy a keyboard for your new iPad Air, or a screen protector for your iPhone 5s.

Zagg's Cyber Monday Sale includes 50% off invisibleSHIELD screen protectors, 20% off the ZAGGkeys Folio Backlit Keyboard for the iPad Air, and 20% off the ZAGGkeys Profolio Plus for the iPad 2, 3 and 4. You can also save up to 50% on portable chargers, cases and audio accessories.

The Home Sharing feature in iTunes makes it possible to stream an iTunes library directly from a computer to an iPhone, iPad or iPod touch. As long as the iOS device is connected to the same Wi-Fi network as the computer, large iTunes collections can be accessed directly from iOS, without syncing or taking up storage space. It only takes a few steps to set up Home Sharing and start streaming music and video.

First, open iTunes on the computer and navigate to File -> Home Sharing -> Turn on Home Sharing. Older versions of iTunes (10.2 to 10.7) have the Turn on Home Sharing option under the Advanced menu. Enter your Apple ID and password to start sharing the iTunes library. iTunes media on multiple computers can be shared over the same Wi-Fi network.