"ed" wrote:

I want to change the colors of a cell on a daily basis. If I turn the cell
green on Monday, I want it to be orange on Tuesday and red on Wednesday,
unless I turn it green again, then repeat the process. Is this possible?

Maybe not the best way but it works.
In cell A1, enter =Today()
In cell A2, enter =Weekday(A1) *This will increment 1-7 (1 being Sunday)
In cell A3, goto Format/Conditional Formatting

In condition 1, change the entry in the dropdown list to "Formula Is". It
the txtbox next to this, type =$A$2=1and then click on the format button to
choose your colours.

Repeat this for every day of the week (1-7). The format of A3 should change
everyday.

Let me know if it works!

James Nicholls