Spreadsheet for Monetary Instrument Logs

First, remember that there isn't a requirement that you keep these records in a log. That said, many banks use a log, often in spreadsheet form, to record the necessary information so that it can be readily retrieved. A spreadsheet or database format also provides potential for sorting and interpreting the data to help spot trends or suspect activity.

I'd start by setting up columns based on the information required for a purchase by a non-depositor, and then populate the spreadsheet with a line for each transaction to be recorded. Make sure each row includes the transaction date. Don't forget that the "purchaser" is the individual conducting the transaction, not necessarily the person on whose behalf it is conducted (including a column for the person on whose behalf a purchase is completed -- the remitter, if you will -- is actually a good idea for monitoring purposes).