Current Date

It's a good idea to insert the current date when you save the file so that you can tell if it's the latest version. Of course this is shown under file properties but how many people know where to find it? You could also put the current date in the footer of your print out. It is ideal if the date does not change unless the file is saved. You can use this code. (On the drop down list that says declaration, select before save and you will see the 1st line of code shown below - more details refer to Auto Run macro)

Private Sub Workbook_BeforeSave(ByVal SaveAsUI As Boolean, Cancel As Boolean)
Range("A1") = Now 'Select any cell you want
End Sub