Additional Details: The cells listed in the Watch Window act as bookmarks! You can double-click a cell and jump to the cell, even if it is on another worksheet.
Gotcha: If you change the numeric format of a number, it does not automatically appear in the Watch Window. However, if you double-click the Value in the Watch Window, it will update.
Additional Details: You can resize the column widths in the Watch Window, as necessary. Further, you can resize the entire Watch Window, and you can even dock it to the top, bottom, or side of the worksheet. Grab the title bar and drag the Watch Window off the edge of the window. In this figure, the window is docked on the left side of the screen. There is easily room for 3 dozen cells to appear.