It would be very useful to be able to archive previous years paid invoices
Check the dashboard overview and click on the "money owed to me" box. You can order in any way you like. Due date, invoice date, client etc by clicking on the title bar above the first listed unpaid invoice. You can also see just the overdue invoices by clicking on the "overdue invoices" at the bottom of the overview box on the dashboard and list them how you like.
The same can be done for purchases.
You won't be notified about changes to this idea.