Mac tricks that save a few seconds every time, most of them already built in

A search for Mac tricks usually returns a list of twenty five items, most of which get tried once and then forgotten. The ones that survive share a shape. They replace something done several times an hour, they need no extra software, and they keep working after the next system update. macOS 27 ships with more of these than the average list admits, and several of them moved or gained new behaviour recently enough that people who have used a Mac for a decade are still doing the slow version.

What follows is ordered by how often the saving actually lands, not by how impressive the trick looks in a screenshot. Every item below is a setting or a keystroke that exists in a stock installation.

Spotlight is a calculator, a converter and a clipboard

Command and Space bar opens Spotlight, and most people stop there, using it as a launcher and nothing else. Apple documents a much wider surface, and the additions in macOS 27 are the part that gets missed.

Typing a math expression gives the answer in the search field before anything is opened. Percentages, multiplication and square roots all parse, so 15% of 85 and 120 x 1.08 both resolve in place. Unit conversion works the same way with a plain English phrasing such as 32 degrees F in Celsius or 5 miles in km, and currency is included. Typing a single word shows its definition without opening Dictionary.

Three keys turn a result into an action. Pressing the Space bar on a highlighted result opens Quick Look, which previews documents, images, PDFs and video without launching the owning app. Pressing Tab on a highlighted result reveals Quick Actions, and what appears depends on what is selected, so a file offers different options from a contact. Holding Command on a highlighted result locates the file in the Finder rather than opening it.

The newest addition is clipboard history. Spotlight can search text and files copied earlier, which removes the most common reason people install a separate clipboard utility. Pressing the Up Arrow recalls the previous search, which matters more than it sounds when the same query is being refined.

None of this needs configuring. The saving is entirely in knowing that the window in front of you is already a calculator.

Window tiling without reaching for the trackpad

Tiling arrived as a first class feature and then grew keyboard shortcuts, which is the part worth learning. Dragging a window to an edge of the screen snaps it into that half or corner. Holding Option while dragging toward an edge does the same thing faster, because the drag does not have to reach the edge. Dragging a window to the menu bar fills the desktop with it.

The shortcuts remove the drag entirely. Fn, Control and an arrow key moves the active window to that half of the desktop. Fn, Control and F fills the desktop. Fn, Control and C centres the window. Fn, Control and R returns the window to whatever size it was before it was tiled, which is the one most people wish they had known about first.

Two windows can be placed in one gesture. Fn, Control, Shift and Left Arrow puts the active window on the left half and moves the second window to the right half. The Right, Up and Down arrow variants do the equivalent. Corner layouts exist in the green button menu and in the Window menu under Move and Resize, but they have no keyboard equivalent, so those stay a mouse job.

One side effect is worth knowing. Dragging a window all the way through the top edge of the screen opens Mission Control instead of tiling. If that keeps happening by accident, the switch labelled "Drag windows to top of screen to enter Mission Control" in Desktop and Dock settings turns it off.

Screenshots that land where they are needed

Three shortcuts cover almost every case. Shift, Command and 3 captures the whole screen. Shift, Command and 4 gives a crosshair for dragging out a region. Shift, Command and 4 followed by the Space bar switches to a camera pointer that captures a single window, or the menu bar, cleanly and with its shadow.

The modifier that changes the most is Control. Holding Control along with any of those combinations copies the capture to the clipboard instead of writing a file to the desktop. Control, Shift, Command and 3 grabs the whole screen straight into a paste buffer, which is the difference between pasting into a message immediately and cleaning up a desktop full of PNG files later.

Shift, Command and 5 opens the Screenshot panel, where the settings live. The Options menu there sets where files are saved, including any folder chosen through Other Location, a timer delay, whether the mouse pointer is included, whether the floating thumbnail appears, and whether the last selection is remembered for the next capture. Capture Format chooses between HDR and SDR, which only matters if the display can show the difference.

The floating thumbnail in the bottom right corner is a working surface rather than a notification. While it is on screen, swiping right saves the file immediately, dragging it drops the image straight into a document or a message, and clicking it opens markup and trimming tools.

All of these shortcuts can be reassigned in System Settings under Keyboard, then Keyboard Shortcuts, then Screenshots.

The window keys nobody teaches after the first week

Command and Tab is the one everybody learns. The rest of the set is rarely introduced, and each one removes a trip to a menu.

Command and W closes the front window. Option, Command and W closes every window belonging to that app at once, without quitting it, which is the correct move for a browser or a mail client that has accumulated a dozen strays. Neither of these quits anything. The app stays running, marked by the small dot under its icon in the Dock, and Command and Q is what actually ends it.

Command and M minimises the front window. Command and H hides the whole app, which is different and usually better, because a hidden app leaves nothing in the Dock to click through later and comes straight back with Command and Tab.

The Window menu carries one more that saves real time in apps with a window habit. Merge All Windows collapses every open window of that app into a single tabbed window. Safari, Mail and the Finder all support it. Dragging a tab out of the bar, or choosing Move Tab to New Window, reverses it for the one window that needs to sit on its own.

Command and Tab has a detail worth knowing too. Holding Command down and then pressing Tab opens the switcher, and the Left and Right arrow keys then walk through it, which is easier than counting Tab presses when eight apps are open. Pressing Escape or the Period key while still holding Command cancels the switch entirely.

One setting sits behind all of this. In Menu Bar settings, the row for recent documents, applications and servers controls how many items the Apple menu keeps under Recent Items, and the same number governs Open Recent inside app File menus. Raising it turns the Apple menu into a usable history rather than a short list.

Hot corners, including the one already switched on

Hot corners sit in System Settings under Desktop and Dock, behind a button labelled Hot Corners. Each of the four screen corners gets a pop up menu, and moving the pointer into that corner fires the action.

The default worth knowing about is the bottom right corner, which is already set to Quick Note. That explains the note panel that appears unbidden when the pointer drifts into the corner while reaching for something else. Either change it to something useful or set it to none.

The setting that makes hot corners survivable is hidden in plain sight. While a pop up menu is open, holding Command, Shift, Option or Control adds that key to the corner. The corner then fires only when the modifier is held, which removes every accidental trigger. Lock Screen in a top corner with Command held is a genuinely fast way to secure a machine when standing up, and it never goes off by mistake.

The menu bar is where all of this collects

Every trick above adds something to the top of the screen eventually. Screenshot leaves a recording indicator. Focus adds a status menu. Each new utility installs an icon. On macOS 27 the menu bar has its own pane in System Settings rather than living inside Control Center, which makes the audit easier than it used to be.

Menu Bar Controls lists the system items. Wi-Fi, Bluetooth, Battery, Focus, Screen Mirroring, Display, Sound, Now Playing, Fast User Switching, Time Machine, VPN and Weather each have their own switch. Several of them offer a pop up menu with Show When Active and Always Show, which is the middle setting most rows deserve: the icon appears only when it has something to report. Battery has its own Options button for showing the charge percentage. The Clock is the exception. It is always shown, and only its format can be changed.

Below that, Allow in the Menu Bar handles items added by installed apps. Turning an app off there stops it appearing in the bar regardless of what the app itself prefers, which is the right tool for a helper icon that reinstates itself after every update.

Two gestures finish the job. Holding Command and dragging a menu bar icon sideways reorders the row. Holding Command and dragging an icon off the bar removes it. In the other direction, Control clicking an item inside Control Center offers Copy to Menu Bar, so anything used constantly can be promoted.

When the row is still too long after all of that, the remaining option is to collapse most of it behind a divider and keep only the icons that get read at a glance. That is what a menu bar manager for macOS does, and the feature list and the side by side comparison set out what separates one from another.

Which of these is worth the setup time

Not every trick earns the same return. The table sorts them by what they actually replace.

Trick	Setup cost	What it replaces	Worth it when
Spotlight math and conversion	None	Opening Calculator or a web search	Numbers come up during writing
Quick Look from Spotlight	None	Launching an app to check one file	Files are checked more than edited
Tiling shortcuts	Learning four keys	Dragging windows by hand	Two windows are compared all day
Control with a screenshot	None	Saving a file then deleting it	Captures are pasted, not archived
Hot corner with a modifier	Two minutes	Reaching for a menu	The same action runs many times daily
Menu bar audit	Ten minutes	Hunting for the right icon	The row has grown past the notch

The pattern is clear enough. The items that cost nothing to set up are the ones that go unused the longest, because there is no moment of installation to remember them by.

What to change first

Set one hot corner with a modifier key held, and learn Fn, Control and the arrow keys for tiling. Both pay for themselves the same day. Once the top of the screen is the part that still feels crowded, Koffret is built for that specific problem.