Invoices can be duplicated to keep you from repeating yourself.
Steps to duplicating an invoice:
1. Sign in to the web app at invoiced.com.
2. Go to the Invoices section in the left sidebar of the app.
3. Find and open the invoice you want to duplicate.
4. Click the More button in the top right and then Duplicate Invoice from the menu that appears.
5. The next screen will have a new invoice filled in with all of the details from the original invoice.