Please Stand By

Let's imagine that for whatever reason you want to turn off your computer's or laptop's screen. Unfortunately, Windows does not offer a convenient solution for this particular task.
Sure, PC users with external monitors could very well turn them off manually, by pressing the power button. However, the disadvantage here is the fact that there's no way of turning the display back on in response to moving the cursor.

The quickest way to turn off your computer's screen

This is where a tiny and simplistic app called Please Stand By comes into play. In just a few words, this unassuming app sits in your computer's tray and is capable of turning off (sets it to standby mode, more accurately) your computer's screen once you click its icon.
It's important to point out that there's a small delay between the point when you click the icon up until your computer's screen goes into standby mode. Of course, even the slightest movement of the cursor is enough to turn the screen back on again.

Simple app that doesn't even need a main window to do its job valiantly

If you're looking for an actual main window, you should know that there isn't one. However, besides its default functionality, the app also offers an extra, very useful feature.
By right-clicking its tray icon, you're able to pick from a set of keyboard shortcuts. You can choose from Ctrl+Alt, Alt+Shift, or two Windows button and other key combinations. From the same contextual menu, you can also set up the application to automatically launch on system startup, so you won't have to worry.

Straightforward utility that allows you to put your computer's screen in the standby mode

Taking everything into account, Please Stand By is as efficient as it is simple. It gets the job done, it's incredibly lightweight and low-key and, best of all, it can be activated with both the mouse and your computer's keyboard.