Invoice Generator
http://invoice-generator.com/

Make quick, one-off invoices that you can print straight from your web browser. To use this utility simply fill out the form and an invoice will be created! The resulting invoice will be a PDF that can be saved or printed. Don’t worry, none of your information will be saved. This has been added to the tools section of Research Resources Subject Tracer™ Information Blog. This will be added to Entrepreneurial Resources Subject Tracer™.