25 Tricks and Tips All iPhone Users Should Know

If you weren't already put on to these interesting and highly informational tricks and tips for your iPhone, read on to get more acquainted with your $400 piece of metal—which just happens to make phone calls. We guarantee that you'll learn a thing or two that you didn't already know.

List Compiled & Written By Marc Saltzman Of Yahoo! Shopping

1. Take a photo with your headphone cord:
Now that you can use the volume up or down buttons to snap a photo, steady your hand while framing up the photo and when you're ready to take the picture, press the button on the cord so it won't shake the iPhone. Voila!

2. Get word definitions:
Apple has recently added a built-in dictionary and you can access it in most apps that let you select a word. Simply press and hold on a word — such as in an email, reminder, iBooks, and so on — and you'll see a pop-up option for "Define."

3. Dismiss suggested words:
If you're typing an email or note and the virtual keyboard is suggesting the correct spelling of the word — and you don't want to accept it — you don't need to tap the tiny "X" at the end of the word in question. Simply tap anywhere on the screen to close the suggestion box.

4. Take photos faster:
Even if your iPhone is locked you can double-tap on the Home button and you'll see a camera icon you can tap to open the camera immediately. Now you can use the volume up button to snap the photo, too. You can also use the volume up on the headphone cord to take a photo (if you want to) and pinch the screen to zoom instead of using the slider bar.

5. Use location-based reminders:
You probably know Siri can be used to set a reminder, like saying "Siri, remind me to call mom at 4pm today." But did you know you can set location-based reminders on your iPhone 4S? Say "Remind me to call mom when I leave here" or "Remind me to call mom when I get home" and you'll be notified accordingly.