I have had a couple people ask about it so I figured I would post it here.
At the bottom of the main invoice page, there is a Save Invoice button, which will save the invoice information to the second tab on the bottom (labeled Window Cleaning Invoices), and it will clear all the fields at the same time. Make sure to print before you save, or you will have to make another invoice. On the third tab at the bottom (labeled Jobs and customers) You can put your customer names and addresses that will appear in the drop down boxes on the invoice. If you have any questions or problems feel free to ask.
Also, it won’t save and clear if all the necessary fields are not entered (Customer, Job, quantity description and price).