Use PayPal to Email Your QuickBooks Invoices
This is cool. From the announcement:
Easily turn your QuickBooks invoices into emails with the free PayPal Request Wizard for QuickBooks. Create and email QuickBooks invoices, statements or estimates that include PayPal Payment buttons. Your customer receives the email and simply clicks a button to pay you through PayPal.
-Save time--email your QuickBooks invoices directly
-Avoid extra invoicing paperwork
-Make it easy for buyers to pay you
Best of all, installing and using the Payment Request Wizard for QuickBooks is free.