When you’re using Excel 2003 or later, from time to time it’ll point out mistakes in your formulas or other observations by indicating a green triangle in the upper left of the cell, along with an exclamation point in a yellow diamond. The idea is you click on the diamond to see a menu with some options from Excel.
Clicking? Moi? Nope, instead of reaching for the mouse, just press Alt+Shift+F10, and the menu then opens. (Just have your cursor somewhere in the cell with the Smart Tag.) Once the menu appears, it’s just a regular menu, and you can use the Up Arrow or Down Arrow plus Enter to select an item, or press Esc to cancel.
Similarly, in Microsoft Word, sometimes you’ll be typing and Word will make a correction and show a blue double underline. Move your mouse to the underline and a yellow lightning bolt appears. Click on the lightning bolt and you’ll have some menu items to control the behavior of whatever automatic correction Word made.
Again, clicking? No need. The same Alt+Shift+F10 will open the Smart Tag menu in Word. Just have your cursor somewhere in the word with the double blue underline.