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How To: With This Free Tool, You Can Preview the Mail Coming to Your Home Every Day

Most packages sent to you via delivery services include a tracking number that allows you to track it from the creation of the shipping label all the way to your doorstep. The U.S. Postal Service includes tracking information with many of its mailing services, but not for first-class mail or periodicals. Luckily, there's a workaround to that limitation that you can set up pretty quickly.

News: Seek's CEO Reveals How Its New AR Patent Could Change the Entire 3D Space & Looks into the Future of Smartglasses

Among the various components of the emerging augmented reality space, the most lucrative is the advertising market. The prospect of turning every object, every location, ever signpost in the real world into a discount code or virtual transaction interface is why AR will ultimately be more profitable than VR.

How To: Quickly Generate a Strong Password on Your iPhone When iCloud Keychain Won't Work

Apple's password manager, iCloud Keychain, lets you securely save important login credentials for apps, websites, and services that sync up across all of your Apple devices — iPhone, iPad, iPod touch, and Mac. One of its biggest highlights is that it can create strong passwords for you. Unfortunately, it doesn't always work, and in those cases, there are other ways to generate random, strong passwords.

How To: The Easiest Way to View Exif Metadata for Photos on Your iPhone

Most of the images in your iPhone's Photos app contain exchangeable image file format data known as Exif or EXIF data, which has several helpful uses. You can use countless apps capable of reading Exif data, many of which are paid or limited. But you already have an app on your iPhone that can give you important details about each image — and I'm not talking about the Photos app.

How To: Quickly Download Streamable Videos on Your iPhone Before They Disappear Online

Videos hosted on Streamable may be fleeting or forever. So when you come across a cool video that you want to watch again later, it's a good idea to download it to your device in case it's one that disappears after a few months. There is no built-in download button in the Streamable player, but that doesn't mean you can't save anything on your iPhone.

How To: The Easiest Way to Convert Videos to GIFs on Your iPhone

Countless third-party apps and services exist that can convert the videos on your iPhone into GIFs. With so many options available, the problem becomes which one to choose. Do you install something on the App Store that provides good quality but costs money, or should you use a shady online service where you have to jump through hoops to get the GIF? Your best option may be neither.

How To: Quickly Generate Anonymous, Throwaway Email Addresses on Your iPhone to Keep Your Real Email Accounts Safe from Spam

A temporary email can go a long way. Using your actual email to sign up for a mailing list to receive 10% off a purchase doesn't make sense if you don't use the website much. It means you'll have to deal with spam emails from then on, which is why an anonymous email is perfect not to have to deal with all that trouble. And that's where the TempMail shortcut for your iPhone comes in handy.

How To: Get a 'Select All' Button for Webpages in Safari on Your iPhone

It should be simple to select and copy all text on a webpage in Safari, but it won't work as it does in other apps. Usually, you can press-and-hold down anywhere on a page and choose "Select All" from the edit menu, but that functionality is disabled in Safari and WebKit-based browsers by default — including in the latest iOS 14 version. Luckily, there is a workaround to getting a "Select All" button back.

How To: Need More Time on a Work Assignment or School Project? Corrupt Your Files to Extend Your Deadline Without Question

You have an assignment due, whether it's homework for school or a project for work, but you've only got a few hours left. There's no way you're going to finish in time and do a good job, and you don't want to turn in anything incomplete or half-assed. While it may seem you're out of luck, there's a simple way to buy yourself more time.

How To: Sideload Apps on Chromecast with Google TV — Get Virtually Any Android App on the Big Screen

At launch, Chromecast with Google TV is fairly limited in the number of compatible apps. Many of the usual suspects are there, but there are some interesting omissions, like Google Stadia (though support is coming). However, at its core, the device runs on Android 10, which means you can sideload apps, including those that don't officially support Chromecast with Google TV.

How To: Escape Restricted Shell Environments on Linux

The moment arrives when you finally pop a shell on the web server you've been working on, only you find yourself in a strange environment with limited functionality. Restricted shells are often used as an additional line of defense and can be frustrating for an attacker to stumble upon. But with enough patience and persistence, it is possible to escape these restricted environments.

How To: Stop Picture in Picture from Starting Automatically in iOS 14 When You Exit Video Playing in Apps

For some, one of the coolest new features in iOS 14 is the Picture in Picture mode, which had previously only been available on the iPad. With it, you can continue watching a video from an app in an interactive floating overlay window on the home screen or within other apps. But for others, it can be annoying when it appears unexpectedly all of the time, and there's a way to stop it.

How To: All the Apps That Work with Picture in Picture (PiP) on Your iPhone

Since iOS 9, the iPad has had Picture in Picture mode, which lets you minimize a video that you're watching into a floating overlay so that you can multitask in other apps while it plays. For iPhones, it came a little later, first appearing in iOS 14. It's not just for the Plus or Max displays either — any size display works.

How To: Prevent Certain Apps from Using Cellular Data on Your iPhone to Stay Below Data Caps or Avoid Throttling

If you're on a cellular plan with a low data allotment, being thrifty with your data can help you avoid a higher bill. But even if you have an affordable unlimited plan from wireless carriers such as T-Mobile or Verizon, going over a certain amount of data may throttle your connection, leaving you with slow web speeds. One way to prevent hitting these thresholds is to keep certain apps in check.

How To: Find & Recover Apple Notes Stored in Gmail, Yahoo, Outlook, AOL & Other Third-Party Mail Accounts

If you can't locate a specific entry in the Notes app on your iPhone, chances are that it's hiding in a different place than you thought, connected to a third-party email service such as Gmail, Yahoo, or Outlook. When one of those notes gets lost or accidentally deleted, you're going to run into issues, but it's possible to recover it.

How To: The 15 Most Popular Talks from DEFCON's Hacking Conferences

Every summer for the last 26 years, hoards of hackers have descended on the Las Vegas Strip for DEFCON, the biggest hacker conference in the US. There's a wealth of talks every season (DEFCON 27 has at least 95 scheduled), and there have been some essential topics to learn from in past discussions. We've dug through the last ten years and found the 15 most popular talks you should watch.

News: Apple Releases iOS 13 Developer Beta 2 with Config Profile OTAs, Plus Controls & New Effect for Portrait Lighting

There's no doubt iOS 13 has dominated the talk around the Apple community this month. Since the announcement and release of the first developer beta, we iPhone users have had a treasure trove of new features and changes to explore and discuss. Now the fun continues with iOS 13 dev beta 2. Who's ready to start up the conversation all over again?

How To: Hack Together a YouTube Playing Botnet Using Chromecasts

Imagine being able to play a video instantly on hundreds of thousands of devices across the globe. It's totally possible, as long as all of those devices have a Chromecast plugged in. When Chromecasts are left exposed to the internet, hackers can use add them to a botnet that can play YouTube videos at will. The "attack" is made even easier thanks to a simple Python program called CrashCast.

How To: Everything You Should Know About Rolling Shutter on Your Phone's Camera

Smartphone videos get better and better each year. Seven or eight years ago, who would have thought iPhone and Android phones could support 4K video recording. Some phones can even shoot slow-motion at 960 fps. But no matter the resolution or frame rate, a phone's rolling shutter can make quick movements in front of the camera appear wobbly, distorted, or with artifacts.

How To: Understand & Use IPv4 to Navigate a Network

You may not know it, but the IPv4 address of your computer contains tons of useful information about whatever Wi-Fi network you're on. By knowing what your IPv4 address and subnet mask are telling you, you can easily scan the whole network range, locate the router, and discover other devices on the same network.