According to The Atlantic, 90% of computer users don’t know what Ctrl+F can do.
Control+F is the keyboard shortcut for the Find command. If you’re in a web browser and want to search text on a web page, pressing Control+F will bring up a search box. Just type in that search box and it’ll locate the text you’re typing on the page. Control+F may work in other applications, too, when you need to find something. For example, Microsoft Word and other word processing applications use this keyboard shortcut.
Control+N is the command for creating something new. In a web browser, this will make a new window. In a word processing, image editing, or other document-based application this keyboard shortcut will create a new document.
Control+S is the keyboard shortcut for saving a document. If this is the first time you’ve saved the document you’ll be presented with a new window that’ll ask you what to name it and where you want to save it. If you’ve already saved it once before, this keyboard shortcut will simply save your changes.
Control+P is the keyboard shortcut that will open the print window. From there you’ll be able to check your settings, choose a printer, etc. When you’re ready, just click print and your document will be printed. This keyboard shortcut works in pretty much any application with printable content, including your web browser.
Alt-F4 is the keyboard shortcut for quitting the current application. In Windows it will quit the currently open that’s in focus on the screen.
The enter key is useful for a lot of things. When a dialog window pops up and asks you to press okay or cancel, you can usually just press Enter instead of clicking okay. In Windows you can tell which button will respond to enter because it’ll have a dotted box inside of it. Enter can also be used for other things, like submitting forms on web pages from any text field in that form.