iPhone 
Use contacts from other accounts.
To use your iCloud contacts, go to Settings, tap iCloud, and turn on Contacts. To use your Google, Yahoo, or Microsoft Exchange (GAL) contacts, go to Settings, tap Mail, Contacts, Calendars, select the account, and tap to turn on Contacts. … Continue reading
Update to iOS 7.
In Settings, tap General, and then tap Software Update. Follow the onscreen instructions to download and install iOS 7. After installation, the iOS 7 assistant will guide you through set up. More: How to update your iPhone
Block calls and messages.
You will not receive phone calls, FaceTime calls, or text messages from callers on your block list. Pull up the caller’s contact info by tapping the in Recents in Phone or FaceTime, or tapping Contact in Messages Tap Block this … Continue reading
Use the Camera from the lock screen.
To quickly open the Camera when your iPhone is locked, swipe  up.
Make a FaceTime audio-only call.
In FaceTime, tap Contacts and choose the person you’d like to call. In the FaceTime section, tap to make an audio-only call using FaceTime.
Turn on My Photo Stream.
My Photo Stream automatically pushes a copy of every photo you take or import to all your other devices over Wi-Fi. If you didn’t turn on iCloud Photo Sharing at setup, go to Settings, tap iCloud then tap Photos. Turn … Continue reading
Create a shared photo stream.
While viewing a photo or video, or when you’ve selected multiple photos or videos, tap and tap iCloud. Tap Stream, then tap New Shared Stream. Name the new stream and tap Next to add people you want to invite. When … Continue reading
View your Bookmarks, Reading List and open tabs on other devices.
When you turn on Safari in iCloud, you can view your Bookmarks, Reading List, and open tabs on all your Apple devices. Tap to see your Bookmarks Tap and then tap for your Reading List Tap and scroll to the … Continue reading
Send a location.
When you’ve identified a location, tap to share it. Choose whether to share the Selected Location or your Current Location. Tap Message to include the location in a text or tap Mail to send an email. You can also share … Continue reading
Remove red-eye from a photo.
To easily remove red-eye from a photo, tap Edit then tap . Tap each eye that needs correcting. Tap Apply, then tap Save when finished. Note: Your original photo is preserved, and you can tap Edit and again to undo. … Continue reading
