On most smartphones, hit the Space bar twice at the end of typing a sentence. You get a period, a space, and a capitalized letter at the beginning of the next word.
You don’t have to type “http://www” into your Web browser for most web sites. Just type the remainder: “google.com” or “yahoo.com,” for example. (In the Safari browser, you can even leave off the “.com” part.
You can switch from one open program to the next by pressing Alt+Tab (Windows) or Command-Tab (Mac).
You can tap the Space bar to scroll down on a Web page one screenful. Add the Shift key to scroll back up.
You can double-click a word to highlight it in any document, e-mail or Web page.
When navigating around a huge spreadsheet, an easy way to get to the last row with data in it is to hold down “end” and press the down arrow. You can easily get back to cell A1 with control+home from wherever you are in the spreadsheet.
In most programs, pressing F1 will bring up the help menu.
Hitting backspace on your keyboard when on a website will take you back one page.