In the "Description" field for a contact, a user should have the option of being able to Date and/or Time-Stamp notes that are put in, e.g.:
August 1, 2007 08:30 - Spoke to John and he requested that we modify his order. John agreed to pay the additional $200 frieght costs.
August 2, 2007 13:45 - John called and confirmed receipt of the widgets.
By enabling a Time and Date Stamp option here, it would allow a user the ability quickly to review a list of important phone calls, etc. without having to search other parts of the database.