Take a look at

http://www.mcgimpsey.com/excel/accumulator.html

In article ,
"George Gee" wrote:

Hi All

I would like to put today's date into a cell by entering data into another
cell, the following is what I am using now:

= IF(B3="","",TODAY())

If I open the worksheet tomorrow, then the date will change,
how do I get the date to not change?