If you're a baseball fan, you know that third base is known as the hot corner--because of how a sizzling ground ball can make a subpar third baseman look like he's playing dodgeball rather than baseball.

Not to be outdone, the Mac has four hot corners, one in--surprise!--each corner of the screen. You can use these hot corners to accomplish tasks with the flick of a finger that might otherwise require a more precise clicking of a dock icon or burrowing through a couple of levels of system preferences.

How to set up a hot corner to trigger the screen saver

  1. From the Apple menu, choose System Preferences.
  2. Click Desktop and Screen Saver.

  3. Click the Screen Saver tab.
  4. Click Hot Corners....

  5. In the sheet that appears, click any of the pop-up menus and choose Start Screen Saver.

Now when you move the pointer to the corner you've chosen—it's quick and easy to do—your screen saver of choice will begin. This is pretty handy, because it can help prevent screen burn-in.

As you can tell from the hot corners pop-up menu, you can do more than just enable the screen saver with a hot corner. In fact, you can even set the same action in more than one hot corner. So if you want to enable the screen saver when you move the pointer to any of the four hot corners, go ahead and knock yourself out.

How to require a password to unlock your screen saver

If you set your security system preference to require a password to unlock the screen saver, you can turn on the screen saver when you leave your Mac knowing that its contents are protected from someone else's wandering eyes. Here's how:

  1. From the Apple menu, choose System Preferences.
  2. Click Security and Privacy.

  3. Click the General tab.
  4. Check the box to Require password and set a time from the pop-up menu.

A trick up its sleeve

Now picture this. You're trying to click a menu or hit an icon near the far reaches of one of the corners of the screen and your usual precision fails you. You accidentally touch a hot corner with the pointer. Suddenly, the screen saver starts and requires your attention to unlock it and get back to work.

Fortunately, there's a hidden feature of hot corners that solves this common problem.

While opening one of the hot corners pop-up menus, hold down the Command, Option, Control, or Shift key (or even more than one of these four keys) to require that key(s)—in addition to moving the pointer to that corner—to trigger the screen saver. The pop-up menu will change to reflect the additional key you've selected.

And now—rather than just a rapid mouse movement—it will take the more deliberate action of pressing a key on the keyboard to activate the screen saver.

We all like it hot

Which hot corner actions have you found most beneficial? Let us know in the comments below.



Latest And Best Prime Day Deals

Amazon's Fire TV Cube is down to just $70 thanks to this Prime Day deal
Amazon Fire TV Cube
$69.99 $119.99 Save $50

Save $80 on the Neato D4 robot vacuum during this Prime Day Lightning deal
Neato Robotics D4 Alexa-enabled laser-guided robot vacuum cleaner
$319.99 $400.00 Save $80

Time is running out. And so is the supply. Grab it while you can.

Grab TCL's 32-inch 720p Roku TV for less than $100 in this Prime Day Lightning deal
TCL 32S325 32-inch 720p Roku TV
$99.99 $130.00 Save $30

Act fast while you can. These Lightning deals tend to sell out quick.

The Ring Alarm security system is reaching new low prices for Prime Day
Ring Alarm home security systems

Various configurations of the Ring Alarm are discounted to their best prices yet exclusively for Prime members at Amazon through Tuesday night to help keep your home secure.

The Sonos Beam Prime Day deal includes a $40 discount and 2 $50 Amazon gift cards
The Sonos Beam Prime Day deal includes a $40 discount and $100 in Amazon gift cards
$359.00 $499.00 Save $140

That's just so much savings in one deal. You'll have to wait for the physical gift cards, but that's basically $100 to spend however you want.

Prime Day dropped this PlayStation 4 console bundle to just $250
PlayStation 4 Slim 1TB console with Marvel's Spider-Man and Horizon Zero Dawn
$249.99 $359.98 Save $110

This deal on the PlayStation 4 Slim console saves you $50 off its regular price while also including Marvel's Spider-Man and Horizon Zero Dawn Complete Edition for free. You'll just need an Amazon Prime membership to snag it.

The newest device in the Echo family, the Show 5, is now down to just $50
Echo Show 5
$49.99 $89.99 Save $40

It's only been on the market since May, but it hasn't escaped the Prime Day price cuts.

Amp up your home security with these huge Prime Day discount on nearly all Ring products
Save on Ring products today only

Whether you need a video doorbell, whole home alarm system, or some lights to brighten a dark area, Amazon has it all marked down today!

More Prime Day Deals