Quickly fill multiple cells in Excel with the same value or formula

Sometimes when you are doing data entry in an Excel worksheet do you need to put the same value into several cells?  Maybe you want to put zeros in a bunch of cells or you are recording transactions and you want to put the same date in a group of cells.

This is an alternative to entering the value and then using Copy/Paste.

Select the cells, enter the value then press Ctrl+Enter.  Using Ctrl+Enter instead of Enter puts the value in all the selected cells.

You can use Ctrl when selecting if you want to put the same value into non-adjacent cells.