I built a service called Invoiced (
http://invoiced.com) that has Stripe baked in from the beginning. Your customers pay through a secure form we generate and the receipt is generated/e-mailed to them afterwards.
If you want any more info, you can reach me at jared [at] invoiced.com.
EDIT: Should also mention you can make invoices without making an account at http://invoice-generator.com if you just invoice occasionally.