I have just updated the post ‘Pure Excel-lence‘ to include more clear instructions for shading every other column (sorry about my impatience at the PD last week) and a whole new section on changing the direction of the text within a cell.
You can find the updated post by clicking the link above or going to the Excel link in the list of categories on the right.
Don’t forget to use the web version of these posts rather than the email one to ensure that you are getting the most up-to-date information!