I have a client, who wants me to set up an invoicing system for about 450
invoices per month, with around 100 clients, which will also give her a
report each month on client movement, product movement and a consolidated
report on individual invoices created during each month.

Would you create a file for each month? Is there a way to get the invoices
to reproduce themselves whenever a new invoice is required and still carry
the information?

Your help would be appreciated