When you are assigning or "making up" Tag Codes and Descriptions it may be helpful to embed some information that will help you understand their purpose and sort the tags months from now, when you have lots of them working for you.
The Tag Code and the Description are both pretty short, but the Notes field is unlimited. Some users like to break the Description and Tag Code into 4 segments:
Duration(term) - Purpose - Content Type - User Defined Info
Duration = S -short, L -long.
Purpose = E -email, T -text, M -snail mail, R -report
Content = C -coupon, D -discount, N -news.
User Defined Info = Text that describes the tag to you in more detail. In example above we used MIA01 thinking someday we may create an MIA02.