Have you rarely used Excel? Does it scare you a bit? If so, try using it simply to add up lists of figures as shown in my video. It's so easy, you'll never need to use a calculator again!
Or, if you already use Excel, have you actually paid any attention to the Status Bar at the bottom of the screen? It can give you so much useful information, such as the total or average of a list of highlighted figures.
If you enjoyed this video then click here to see the library of other Sarah's Office Snippets.