There are plenty of reasons to start a second Instagram account - one for your business, separate from your personal; one for your alter-ego; one for your pet perhaps... Whatever your reason, Instagram allows you to have up to five accounts, you'll just need a separate email for each one. You'll need to know how to manage multiple accounts as well - you used to have to log out and log back in, but you can now simply toggle between them. Here's how to open a second Instagram account on iPhone and iPad, and how to switch between accounts:

Blocking a phone number on iPhone makes it easy to avoid unwanted calls. But how can one begin accepting calls from a number that has already been blocked? Maybe you've buried the hatchet with an old enemy, or accidentally blocked your mother-in-law's phone number. Unblocking a contact on iPhone will restore incoming calls from that number immediately.

There may be times when you want to make an anonymous call - perhaps you are shopping around and don't want to give a business your number, or maybe you think somebody is avoiding your calls when they see your name come up. Whatever the case, there are a couple of ways you can block your number from showing up on the recipient's Caller ID. You can either block your number on a call-by-call basis or you can have your number blocked by default and let it be shown on a call-by-call basis.

The PDF, or Portable Document Format, was designed as a reliable way to exchange documents independent of software, hardware or operating system. As such, it is has become a popular method of sharing a variety of documents, including photos. You can put your photos in a PDF and share them from the Photos app on your iPhone or iPad, though the feature is not at all obvious as it is found under "Print" in the sharing options. Here's how to put your photos in a PDF file and share it on iPhone or iPad:

My initial review of SEGA Heroes wasn't very positive, but I have become totally addicted to the match 3 RPG. The game seems to be set up to frustrate you. It promises you the ability to unlock "legendary heroes from your favorite SEGA games," but this is almost impossible. To unlock a hero you must collect shards by completing battles, over and over. You need 25 to 50 shards to unlock most characters, and the only way to earn a shard is to complete specific battles. After each successful battle you are awarded gold, XP, gems and sometimes a hero shard.