Interested in selling or giving away your old iPhone to pick up a nice new iPhone 4S but need to know how to make sure you've erased all your personal information from the device first? Luckily Apple makes it easy to securely wipe all your data. We'll show you how after the break.

Although we highly suggest performing a full firmware restore and setting up your iPhone, iPod touch, or iPad as "new", if you're not near your computer you can still get the job done:

1. Tap the 'Settings' icon
2. Tap 'General'
3. Scroll down to the bottom and tap 'Reset'
4. Tap 'Erase All Content and Settings'

If you have a passcode setup, you'll have to verify your credentials before being asked one last time that you're positively sure you want to dispose of everything on your iPhone. The process can also take some time depending on how much music, video, apps, etc. you had stored on the iPhone, as Apple is writing over the data multiple times for security's sake.

It's also important to note that if you have a jailbroken iPhone, you'll want to go through the full iTunes restore process due to permissions issues preventing the data from being fully erased from the device.

Once it's done you're good to give away or sell your old iPhone without having to worry about anyone getting into something you may have left behind. Let us know if you have any questions in the comments below!

Tips of the day will range from beginner-level 101 to advanced-level ninjary. If you already know this tip, keep the link handy as a quick way to help a friend. If you have a tip of your own you’d like to suggest, add them to the comments or send them in to dailytips@tipb.com. (If it’s especially awesome and previously unknown to us, we’ll even give ya a reward…)

Want to find out how to clear your browsing history in Safari? Need to make sure no one has a way of knowing what websites you've visited on your iPhone or iPad? Keeping that special gift you got your friend a secret or any other reason (at TiPb we don't judge). Lucky for you there's a quick and easy way to clear all of your browsing history in Safari so hit the jump to find out how!

To clear your browsing history in Mobile Safari all you need to do is follow these quick steps:

1. Go into the Settings app and select Safari

1. Scroll down to the very bottom and tap 'Clear History'

1. Confirm.

That's it! All of your browsing history will be gone the next time you launch Mobile Safari, so you don't have to worry about someone finding something you didn't want them to see!

Bonus Tip: From the Safari settings pane you also have options to clear cache and cookies. Mobile Safari stores a cache of websites you visit to help reduce bandwidth usage and server load. Cookies are used to store authentication information, site preferences etc. If you want to clear your cookies and cache just tap 'Clear Cookies' and 'Clear Cache'. You'll be asked to confirm for both, just like when you cleared your browsing history.

Bonus Tip 2**: Need to clear more than just safari? Check out our full iPhone and iPad clearing tip!

Tips of the day will range from beginner-level 101 to advanced-level ninjary. If you already know this tip, keep the link handy as a quick way to help a friend. If you have a tip of your own you’d like to suggest, add them to the comments or send them in to dailytips@tipb.com. (If it’s especially awesome and previously unknown to us, we’ll even give ya a reward…)

Giving away, returning, or just lending your iPhone, iPod touch, or iPad and need to know how to clear off any porn -- er, adult content -- that might have somehow made its way onto your device? We may not have had the fun with this issue that our Android Central friends did over the holidays, but we can share their cautionary advice... after the break!

Steve Jobs might say Android is for porn and iPhone is not (never mind the numbers...), but iPhone, iPod touch, and iPad have Safari, the best web browser in the mobile business, and as everyone but Apple's CEO apparently knows -- the web, it has porn. More than that, your texts might be sexts, your email extreme, your photos more than flirty, and while your App Store apps can't be rated XXX, they still could be rated R. How do you tidy things up before giving away or lending your device? Here are some options

Total Wipe

If you're just returning your iPhone, iPod touch, or iPad to Apple, Best Buy, or another retailer your best option is to nuke it completely, i.e. "Erase all content and settings."

• How to erase all personal data from your iPhone

The instructions are pretty much the same for iPod touch and iPad, and you'll be left with a device almost in factory fresh condition.

Selective Wipe

If you just want to lend your device, or want to sell it while maintaining a Jailbreak on older firmware, you'll need to be more selective.

Deleting Text/SMS/MMS Messages

1. Launch the Messages app
2. Tap Edit
3. Tap the red - icon on the left
4. Tap the red Delete button to confirm
5. Repeat for any and all conversations you want to delete

Or you can simply choose to delete only certain specific SMS or MMS messages.

Deleting Photos

You can only delete Photos that are in the Camera Roll. If you want to delete a synced album you have to connect to iTunes and deselect the photos so they don't sync any more. To delete from the Camera Roll:

1. Launch Photos
2. Follow the directions for selecting multiple Photos (There's no limit to the amount of photos you can select for deletion.)
3. Choose Delete instead of Share... carefully!

Clearing Mail

Just remove the email account. You can always add it back later, especially if it's a server-side IMAP or ActiveSync account like MobileMe, Gmail, Exchange, etc.

1. Launch Settings
2. Scroll down to Mail, Contacts, Calendars
3. Tap Mail, Contacts, Calendars
4. Tap the account you want to delete
5. Scroll to the bottom
6. Tap Delete

If you really only want to delete individual email threads:

1. Launch Mail
2. Follow the same instructions as for Messages, as described above.

Clearing Safari

Streaming might be safer than storing on-device, but web sites, especially advertising heavy web sites, especially porn sites, love to keep track of you. While there's no "private browsing mode" for iOS Safari like there is for Mac Safari, you can still manually clear it out.

1. Launch Settings
2. Follow the directions in our tip on how to clear out Safari

Deleting Apps

Deleting apps, or Home Screen clipped web site, is easy:

1. Touch and hold your finger down on the app until it goes into "Jiggly Mode" (starts to dance around).
2. Look for the small X badge at the top left of the app you want to delete
3. Tap the small X badge
4. A dialog box will pop up identifying the name of the app you're about to delete and warning you that you'll delete all the data in the app as well (your account login, game progress, etc.)
5. If you're sure, tap Delete (if you're not, tap Cancel)
6. If you decide not to delete an app, tap the Home Button to exit Jiggly Mode

Deleting Movies

If you have synced any movies over, they're simple to delete as well:

1. Launch iPod
2. Tap Movies
3. Swipe from left to right over the movie
4. Tap the Delete button

Deny, deny, deny

Again, the "Erase all content and settings" is your first, best option if you're really getting rid of your device. With everything else, your being human, you'll eventually mess up. If you do, just remember what every celebrity and politician on every talk/news show in America has taught us -- deny, deny, deny!

(Or if you have any better ideas, leave them in comments!)

Tips of the day will range from beginner-level 101 to advanced-level ninjary. If you already know this tip, keep the link handy as a quick way to help a friend. If you have a tip of your own you’d like to suggest, add them to the comments or send them in to dailytips@tipb.com. (If it’s especially awesome and previously unknown to us, we’ll even give ya a reward…)

In the latest firmware, 2.1, Apple implemented a nice safety feature: the ability to have your iPhone erased if the wrong pass code is entered 10 times. It is a great feature if your phone is stolen or lost and you have vital information that should not be seen by anyone else.

I received the above picture from forum member cgov this morning. Seems as though he only gets 5 tries to unlock his phone before it gets erased compared to 10, which is supposed to be the standard.

Anyone else seeing that?

(Thanks for the tip cgov!)