How to increase or decrease font size (MS Word)
To quickly increase the font size of selected text, press Ctrl+Shift+>. To decrease the size, press Ctrl+Shift+<. I find it easy to remember these keyboard shortcuts because the one with the greater-than symbol increases the font size while the less-than symbol decreases it.
How to used Fill Handle (MS Excel)
If you drag the fill handle with only one cell selected, it will repeat that cell's value into adjacent cells. However, if you drag the fill handle with multiple cells selected, Excel is smart enough to figure out the series. For instance, in the following example, Excel will fill subsequent cells with the increasing series of odd numbers. This even works for other types of series, like dates and percentages.
In the above slides, I selected 2 cells then drag the fill handle downward and you will notice the number will increment by 5.